113436131 has 4 divisors (see below), whose sum is σ = 113613192. Its totient is φ = 113259072.

The previous prime is 113436097. The next prime is 113436133. The reversal of 113436131 is 131634311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131634311 = 373 ⋅352907.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113436131 is a prime.

It is a super-2 number, since 2×113436131² = 25735511632498322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113436097 and 113436106.

It is not an unprimeable number, because it can be changed into a prime (113436133) 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, 87566 + ... + 88851.

It is an arithmetic number, because the mean of its divisors is an integer number (28403298).

Almost surely, 2^113436131 is an apocalyptic number.

113436131 is a deficient number, since it is larger than the sum of its proper divisors (177061).

113436131 is an equidigital number, since it uses as much as digits as its factorization.

113436131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177060.

The product of its digits is 648, while the sum is 23.

The square root of 113436131 is about 10650.6399338256. The cubic root of 113436131 is about 484.0799946895.

The spelling of 113436131 in words is "one hundred thirteen million, four hundred thirty-six thousand, one hundred thirty-one".