113561690 has 32 divisors (see below), whose sum is σ = 223858944. Its totient is φ = 41135040.

The previous prime is 113561681. The next prime is 113561699. The reversal of 113561690 is 96165311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (113561681) and next prime (113561699).

It is a super-2 number, since 2×113561690² = 25792514871312200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113561699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28607 + ... + 32333.

It is an arithmetic number, because the mean of its divisors is an integer number (6995592).

Almost surely, 2^113561690 is an apocalyptic number.

113561690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

113561690 is a deficient number, since it is larger than the sum of its proper divisors (110297254).

113561690 is a wasteful number, since it uses less digits than its factorization.

113561690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4022.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 113561690 is about 10656.5327381846. The cubic root of 113561690 is about 484.2585333023.

The spelling of 113561690 in words is "one hundred thirteen million, five hundred sixty-one thousand, six hundred ninety".