108381857 has 2 divisors, whose sum is σ = 108381858. Its totient is φ = 108381856.

The previous prime is 108381839. The next prime is 108381877. The reversal of 108381857 is 758183801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91374481 + 17007376 = 9559^2 + 4124^2 .

It is a cyclic number.

It is not a de Polignac number, because 108381857 - 2¹⁴ = 108365473 is a prime.

It is not a weakly prime, because it can be changed into another prime (108381877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54190928 + 54190929.

It is an arithmetic number, because the mean of its divisors is an integer number (54190929).

Almost surely, 2^108381857 is an apocalyptic number.

It is an amenable number.

108381857 is a deficient number, since it is larger than the sum of its proper divisors (1).

108381857 is an equidigital number, since it uses as much as digits as its factorization.

108381857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 41.

The square root of 108381857 is about 10410.6607379167. The cubic root of 108381857 is about 476.7809148503.

The spelling of 108381857 in words is "one hundred eight million, three hundred eighty-one thousand, eight hundred fifty-seven".