108375557 has 2 divisors, whose sum is σ = 108375558. Its totient is φ = 108375556.

The previous prime is 108375551. The next prime is 108375559. The reversal of 108375557 is 755573801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59459521 + 48916036 = 7711^2 + 6994^2 .

It is a cyclic number.

It is not a de Polignac number, because 108375557 - 2⁴ = 108375541 is a prime.

It is a super-2 number, since 2×108375557² = 23490522710120498, which contains 22 as substring.

Together with 108375559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108375551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54187778 + 54187779.

It is an arithmetic number, because the mean of its divisors is an integer number (54187779).

Almost surely, 2^108375557 is an apocalyptic number.

It is an amenable number.

108375557 is a deficient number, since it is larger than the sum of its proper divisors (1).

108375557 is an equidigital number, since it uses as much as digits as its factorization.

108375557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 147000, while the sum is 41.

The square root of 108375557 is about 10410.3581590645. The cubic root of 108375557 is about 476.7716765945.

The spelling of 108375557 in words is "one hundred eight million, three hundred seventy-five thousand, five hundred fifty-seven".