118331797 has 2 divisors, whose sum is σ = 118331798. Its totient is φ = 118331796.

The previous prime is 118331783. The next prime is 118331813. The reversal of 118331797 is 797133811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70459236 + 47872561 = 8394^2 + 6919^2 .

It is a cyclic number.

It is not a de Polignac number, because 118331797 - 2²³ = 109943189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118331767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59165898 + 59165899.

It is an arithmetic number, because the mean of its divisors is an integer number (59165899).

Almost surely, 2^118331797 is an apocalyptic number.

It is an amenable number.

118331797 is a deficient number, since it is larger than the sum of its proper divisors (1).

118331797 is an equidigital number, since it uses as much as digits as its factorization.

118331797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 40.

The square root of 118331797 is about 10878.0419653539. The cubic root of 118331797 is about 490.9461062489.

The spelling of 118331797 in words is "one hundred eighteen million, three hundred thirty-one thousand, seven hundred ninety-seven".