8152603121 has 4 divisors (see below), whose sum is σ = 8779726452. Its totient is φ = 7525479792.

The previous prime is 8152603117. The next prime is 8152603141. The reversal of 8152603121 is 1213062518.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 401561521 + 7751041600 = 20039^2 + 88040^2 .

It is a cyclic number.

It is not a de Polignac number, because 8152603121 - 2² = 8152603117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8152603141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313561646 + ... + 313561671.

It is an arithmetic number, because the mean of its divisors is an integer number (2194931613).

Almost surely, 2^8152603121 is an apocalyptic number.

It is an amenable number.

8152603121 is a deficient number, since it is larger than the sum of its proper divisors (627123331).

8152603121 is a wasteful number, since it uses less digits than its factorization.

8152603121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627123330.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 8152603121 is about 90291.7666290786. The cubic root of 8152603121 is about 2012.6369128001.

Adding to 8152603121 its reverse (1213062518), we get a palindrome (9365665639).

The spelling of 8152603121 in words is "eight billion, one hundred fifty-two million, six hundred three thousand, one hundred twenty-one".