108031657 has 2 divisors, whose sum is σ = 108031658. Its totient is φ = 108031656.

The previous prime is 108031643. The next prime is 108031717. The reversal of 108031657 is 756130801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82519056 + 25512601 = 9084^2 + 5051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108031657 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (108031607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54015828 + 54015829.

It is an arithmetic number, because the mean of its divisors is an integer number (54015829).

Almost surely, 2^108031657 is an apocalyptic number.

It is an amenable number.

108031657 is a deficient number, since it is larger than the sum of its proper divisors (1).

108031657 is an equidigital number, since it uses as much as digits as its factorization.

108031657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 108031657 is about 10393.8278319395. The cubic root of 108031657 is about 476.2668410033.

The spelling of 108031657 in words is "one hundred eight million, thirty-one thousand, six hundred fifty-seven".