2061521151 has 8 divisors (see below), whose sum is σ = 2779579440. Its totient is φ = 1358905152.

The previous prime is 2061521117. The next prime is 2061521153. The reversal of 2061521151 is 1511251602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2061521151 - 2¹⁰ = 2061520127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061521153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3860260 + ... + 3860793.

It is an arithmetic number, because the mean of its divisors is an integer number (347447430).

Almost surely, 2^2061521151 is an apocalyptic number.

2061521151 is a deficient number, since it is larger than the sum of its proper divisors (718058289).

2061521151 is an equidigital number, since it uses as much as digits as its factorization.

2061521151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7721145.

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 2061521151 is about 45403.9772597071. The cubic root of 2061521151 is about 1272.7094388319.

Adding to 2061521151 its reverse (1511251602), we get a palindrome (3572772753).

The spelling of 2061521151 in words is "two billion, sixty-one million, five hundred twenty-one thousand, one hundred fifty-one".