113731889 has 2 divisors, whose sum is σ = 113731890. Its totient is φ = 113731888.

The previous prime is 113731873. The next prime is 113731903. The reversal of 113731889 is 988137311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97851664 + 15880225 = 9892^2 + 3985^2 .

It is a cyclic number.

It is not a de Polignac number, because 113731889 - 2⁴ = 113731873 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (113731589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56865944 + 56865945.

It is an arithmetic number, because the mean of its divisors is an integer number (56865945).

Almost surely, 2^113731889 is an apocalyptic number.

It is an amenable number.

113731889 is a deficient number, since it is larger than the sum of its proper divisors (1).

113731889 is an equidigital number, since it uses as much as digits as its factorization.

113731889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 41.

The square root of 113731889 is about 10664.5154132759. The cubic root of 113731889 is about 484.5003377845.

The spelling of 113731889 in words is "one hundred thirteen million, seven hundred thirty-one thousand, eight hundred eighty-nine".