108921251 has 2 divisors, whose sum is σ = 108921252. Its totient is φ = 108921250.

The previous prime is 108921233. The next prime is 108921269. The reversal of 108921251 is 152129801.

It is a balanced prime because it is at equal distance from previous prime (108921233) and next prime (108921269).

It is a cyclic number.

It is not a de Polignac number, because 108921251 - 2²⁶ = 41812387 is a prime.

It is not a weakly prime, because it can be changed into another prime (108921151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54460625 + 54460626.

It is an arithmetic number, because the mean of its divisors is an integer number (54460626).

Almost surely, 2^108921251 is an apocalyptic number.

108921251 is a deficient number, since it is larger than the sum of its proper divisors (1).

108921251 is an equidigital number, since it uses as much as digits as its factorization.

108921251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 108921251 is about 10436.5344343800. The cubic root of 108921251 is about 477.5705528819.

The spelling of 108921251 in words is "one hundred eight million, nine hundred twenty-one thousand, two hundred fifty-one".