109925857 has 2 divisors, whose sum is σ = 109925858. Its totient is φ = 109925856.

The previous prime is 109925833. The next prime is 109925861. The reversal of 109925857 is 758529901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106998336 + 2927521 = 10344^2 + 1711^2 .

It is a cyclic number.

It is not a de Polignac number, because 109925857 - 2¹⁵ = 109893089 is a prime.

It is equal to p_6299299 and since 109925857 and 6299299 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 (109925807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54962928 + 54962929.

It is an arithmetic number, because the mean of its divisors is an integer number (54962929).

Almost surely, 2^109925857 is an apocalyptic number.

It is an amenable number.

109925857 is a deficient number, since it is larger than the sum of its proper divisors (1).

109925857 is an equidigital number, since it uses as much as digits as its factorization.

109925857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 46.

The square root of 109925857 is about 10484.5532570539. The cubic root of 109925857 is about 479.0343099219.

The spelling of 109925857 in words is "one hundred nine million, nine hundred twenty-five thousand, eight hundred fifty-seven".