115661002 has 8 divisors (see below), whose sum is σ = 176335812. Its totient is φ = 56882400.

The previous prime is 115660939. The next prime is 115661003. The reversal of 115661002 is 200166511.

It can be written as a sum of positive squares in 2 ways, for example, as 109809441 + 5851561 = 10479^2 + 2419^2 .

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 (115661003) 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, 473899 + ... + 474142.

Almost surely, 2^115661002 is an apocalyptic number.

115661002 is a deficient number, since it is larger than the sum of its proper divisors (60674810).

115661002 is an equidigital number, since it uses as much as digits as its factorization.

115661002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948104.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 115661002 is about 10754.5805125072. The cubic root of 115661002 is about 487.2243483948.

The spelling of 115661002 in words is "one hundred fifteen million, six hundred sixty-one thousand, two".