109864057 has 2 divisors, whose sum is σ = 109864058. Its totient is φ = 109864056.

The previous prime is 109864049. The next prime is 109864091. The reversal of 109864057 is 750468901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92525161 + 17338896 = 9619^2 + 4164^2 .

It is a cyclic number.

It is not a de Polignac number, because 109864057 - 2³ = 109864049 is a prime.

It is a super-2 number, since 2×109864057² = 24140222040998498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (109864037) 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, 54932028 + 54932029.

It is an arithmetic number, because the mean of its divisors is an integer number (54932029).

Almost surely, 2^109864057 is an apocalyptic number.

It is an amenable number.

109864057 is a deficient number, since it is larger than the sum of its proper divisors (1).

109864057 is an equidigital number, since it uses as much as digits as its factorization.

109864057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 109864057 is about 10481.6056498993. The cubic root of 109864057 is about 478.9445225242.

The spelling of 109864057 in words is "one hundred nine million, eight hundred sixty-four thousand, fifty-seven".