115521610 has 8 divisors (see below), whose sum is σ = 207938916. Its totient is φ = 46208640.

The previous prime is 115521599. The next prime is 115521611. The reversal of 115521610 is 16125511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 115412049 + 109561 = 10743^2 + 331^2 .

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

It is not an unprimeable number, because it can be changed into a prime (115521611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5776071 + ... + 5776090.

Almost surely, 2^115521610 is an apocalyptic number.

115521610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115521610 is a deficient number, since it is larger than the sum of its proper divisors (92417306).

115521610 is a wasteful number, since it uses less digits than its factorization.

115521610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11552168.

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 115521610 is about 10748.0979712691. The cubic root of 115521610 is about 487.0285391571.

The spelling of 115521610 in words is "one hundred fifteen million, five hundred twenty-one thousand, six hundred ten".