107709257 has 4 divisors (see below), whose sum is σ = 110620356. Its totient is φ = 104798160.

The previous prime is 107709211. The next prime is 107709317. The reversal of 107709257 is 752907701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104264521 + 3444736 = 10211^2 + 1856^2 .

It is a cyclic number.

It is not a de Polignac number, because 107709257 - 2⁶ = 107709193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 107709257.

It is not an unprimeable number, because it can be changed into a prime (107709757) 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 in 3 ways as a sum of consecutive naturals, for example, 1455494 + ... + 1455567.

It is an arithmetic number, because the mean of its divisors is an integer number (27655089).

Almost surely, 2^107709257 is an apocalyptic number.

It is an amenable number.

107709257 is a deficient number, since it is larger than the sum of its proper divisors (2911099).

107709257 is an equidigital number, since it uses as much as digits as its factorization.

107709257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2911098.

The product of its (nonzero) digits is 30870, while the sum is 38.

The square root of 107709257 is about 10378.3070392044. The cubic root of 107709257 is about 475.7925928896.

The spelling of 107709257 in words is "one hundred seven million, seven hundred nine thousand, two hundred fifty-seven".