113420837 has 2 divisors, whose sum is σ = 113420838. Its totient is φ = 113420836.

The previous prime is 113420809. The next prime is 113420863. The reversal of 113420837 is 738024311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113337316 + 83521 = 10646^2 + 289^2 .

It is a cyclic number.

It is not a de Polignac number, because 113420837 - 2⁶ = 113420773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113420807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56710418 + 56710419.

It is an arithmetic number, because the mean of its divisors is an integer number (56710419).

Almost surely, 2^113420837 is an apocalyptic number.

It is an amenable number.

113420837 is a deficient number, since it is larger than the sum of its proper divisors (1).

113420837 is an equidigital number, since it uses as much as digits as its factorization.

113420837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 113420837 is about 10649.9219245964. The cubic root of 113420837 is about 484.0582383874.

The spelling of 113420837 in words is "one hundred thirteen million, four hundred twenty thousand, eight hundred thirty-seven".