8152103521 has 3 divisors (see below), whose sum is σ = 8152193811. Its totient is φ = 8152013232.

The previous prime is 8152103461. The next prime is 8152103543. The reversal of 8152103521 is 1253012518.

The square root of 8152103521 is 90289.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 8048063521 + 104040000 = 89711^2 + 10200^2 .

It is not a de Polignac number, because 8152103521 - 2¹⁵ = 8152070753 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8152103521.

It is not an unprimeable number, because it can be changed into a prime (8152103321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 45145 + ... + 135433.

It is an arithmetic number, because the mean of its divisors is an integer number (2717397937).

Almost surely, 2^8152103521 is an apocalyptic number.

8152103521 is the 90289-th square number.

8152103521 is the 45145-th centered octagonal number.

It is an amenable number.

8152103521 is a deficient number, since it is larger than the sum of its proper divisors (90290).

8152103521 is an frugal number, since it uses more digits than its factorization.

8152103521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180578 (or 90289 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The cubic root of 8152103521 is about 2012.5957997990.

The spelling of 8152103521 in words is "eight billion, one hundred fifty-two million, one hundred three thousand, five hundred twenty-one".