109495457 has 2 divisors, whose sum is σ = 109495458. Its totient is φ = 109495456.

The previous prime is 109495447. The next prime is 109495511. The reversal of 109495457 is 754594901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106481761 + 3013696 = 10319^2 + 1736^2 .

It is a cyclic number.

It is not a de Polignac number, because 109495457 - 2²⁰ = 108446881 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (109495417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54747728 + 54747729.

It is an arithmetic number, because the mean of its divisors is an integer number (54747729).

Almost surely, 2^109495457 is an apocalyptic number.

It is an amenable number.

109495457 is a deficient number, since it is larger than the sum of its proper divisors (1).

109495457 is an equidigital number, since it uses as much as digits as its factorization.

109495457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 109495457 is about 10464.0076930400. The cubic root of 109495457 is about 478.4082939119.

It can be divided in two parts, 1094954 and 57, that multiplied together give a triangular number (62412378 = T₁₁₁₇₂).

The spelling of 109495457 in words is "one hundred nine million, four hundred ninety-five thousand, four hundred fifty-seven".