113406637 has 2 divisors, whose sum is σ = 113406638. Its totient is φ = 113406636.

The previous prime is 113406619. The next prime is 113406641. The reversal of 113406637 is 736604311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94692361 + 18714276 = 9731^2 + 4326^2 .

It is an emirp because it is prime and its reverse (736604311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113406637 - 2⁷ = 113406509 is a prime.

It is a super-2 number, since 2×113406637² = 25722130631299538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113406599 and 113406608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113403637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56703318 + 56703319.

It is an arithmetic number, because the mean of its divisors is an integer number (56703319).

Almost surely, 2^113406637 is an apocalyptic number.

It is an amenable number.

113406637 is a deficient number, since it is larger than the sum of its proper divisors (1).

113406637 is an equidigital number, since it uses as much as digits as its factorization.

113406637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 113406637 is about 10649.2552321747. The cubic root of 113406637 is about 484.0380365913.

The spelling of 113406637 in words is "one hundred thirteen million, four hundred six thousand, six hundred thirty-seven".