113545631 has 2 divisors, whose sum is σ = 113545632. Its totient is φ = 113545630.

The previous prime is 113545613. The next prime is 113545639. The reversal of 113545631 is 136545311.

Together with previous prime (113545613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113545631 is a prime.

It is a super-2 number, since 2×113545631² = 25785220638376322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 113545594 and 113545603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113545639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56772815 + 56772816.

It is an arithmetic number, because the mean of its divisors is an integer number (56772816).

Almost surely, 2^113545631 is an apocalyptic number.

113545631 is a deficient number, since it is larger than the sum of its proper divisors (1).

113545631 is an equidigital number, since it uses as much as digits as its factorization.

113545631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 29.

The square root of 113545631 is about 10655.7792300704. The cubic root of 113545631 is about 484.2357055500.

The spelling of 113545631 in words is "one hundred thirteen million, five hundred forty-five thousand, six hundred thirty-one".