113545031 has 4 divisors (see below), whose sum is σ = 116314464. Its totient is φ = 110775600.

The previous prime is 113545009. The next prime is 113545049. The reversal of 113545031 is 130545311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130545311 = 13 ⋅10041947.

It is a cyclic number.

It is not a de Polignac number, because 113545031 - 2¹⁴ = 113528647 is a prime.

It is a super-2 number, since 2×113545031² = 25784948129581922, 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 = 113544988 and 113545006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113545051) 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, 1384655 + ... + 1384736.

It is an arithmetic number, because the mean of its divisors is an integer number (29078616).

Almost surely, 2^113545031 is an apocalyptic number.

113545031 is a deficient number, since it is larger than the sum of its proper divisors (2769433).

113545031 is an equidigital number, since it uses as much as digits as its factorization.

113545031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769432.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 113545031 is about 10655.7510762968. The cubic root of 113545031 is about 484.2348526127.

The spelling of 113545031 in words is "one hundred thirteen million, five hundred forty-five thousand, thirty-one".