113635631 has 2 divisors, whose sum is σ = 113635632. Its totient is φ = 113635630.

The previous prime is 113635583. The next prime is 113635673. The reversal of 113635631 is 136536311.

It is a strong prime.

It is an emirp because it is prime and its reverse (136536311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113635631 is a prime.

It is a super-2 number, since 2×113635631² = 25826113265536322, 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 = 113635594 and 113635603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113635681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56817815 + 56817816.

It is an arithmetic number, because the mean of its divisors is an integer number (56817816).

Almost surely, 2^113635631 is an apocalyptic number.

113635631 is a deficient number, since it is larger than the sum of its proper divisors (1).

113635631 is an equidigital number, since it uses as much as digits as its factorization.

113635631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4860, while the sum is 29.

The square root of 113635631 is about 10660.0014540337. The cubic root of 113635631 is about 484.3636121416.

The spelling of 113635631 in words is "one hundred thirteen million, six hundred thirty-five thousand, six hundred thirty-one".