113597861 has 8 divisors (see below), whose sum is σ = 122610264. Its totient is φ = 104624640.

The previous prime is 113597819. The next prime is 113597863. The reversal of 113597861 is 168795311.

113597861 = T₄₁₇₄ + T₄₁₇₅ + ... + T₄₁₈₆.

It can be written as a sum of positive squares in 4 ways, for example, as 37576900 + 76020961 = 6130^2 + 8719^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 113597861 - 2¹⁰ = 113596837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113597863) 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, 3620 + ... + 15501.

It is an arithmetic number, because the mean of its divisors is an integer number (15326283).

Almost surely, 2^113597861 is an apocalyptic number.

It is an amenable number.

113597861 is a deficient number, since it is larger than the sum of its proper divisors (9012403).

113597861 is a wasteful number, since it uses less digits than its factorization.

113597861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19591.

The product of its digits is 45360, while the sum is 41.

The square root of 113597861 is about 10658.2297310576. The cubic root of 113597861 is about 484.3099422356.

The spelling of 113597861 in words is "one hundred thirteen million, five hundred ninety-seven thousand, eight hundred sixty-one".