108122891 has 2 divisors, whose sum is σ = 108122892. Its totient is φ = 108122890.

The previous prime is 108122881. The next prime is 108122897. The reversal of 108122891 is 198221801.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108122891 is a prime.

It is equal to p_6201599 and since 108122891 and 6201599 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (108122897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54061445 + 54061446.

It is an arithmetic number, because the mean of its divisors is an integer number (54061446).

Almost surely, 2^108122891 is an apocalyptic number.

108122891 is a deficient number, since it is larger than the sum of its proper divisors (1).

108122891 is an equidigital number, since it uses as much as digits as its factorization.

108122891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 108122891 is about 10398.2157604081. The cubic root of 108122891 is about 476.4008742552.

The spelling of 108122891 in words is "one hundred eight million, one hundred twenty-two thousand, eight hundred ninety-one".