13173057 has 8 divisors (see below), whose sum is σ = 19515680. Its totient is φ = 8782020.

The previous prime is 13173053. The next prime is 13173077. The reversal of 13173057 is 75037131.

It is not a de Polignac number, because 13173057 - 2² = 13173053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 487891 = 13173057 / (1 + 3 + 1 + 7 + 3 + 0 + 5 + 7).

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 13173057.

It is not an unprimeable number, because it can be changed into a prime (13173053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243919 + ... + 243972.

It is an arithmetic number, because the mean of its divisors is an integer number (2439460).

Almost surely, 2^13173057 is an apocalyptic number.

It is an amenable number.

13173057 is a deficient number, since it is larger than the sum of its proper divisors (6342623).

13173057 is an equidigital number, since it uses as much as digits as its factorization.

13173057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487900 (or 487894 counting only the distinct ones).

The product of its (nonzero) digits is 2205, while the sum is 27.

The square root of 13173057 is about 3629.4706225564. The cubic root of 13173057 is about 236.1722445048.

The spelling of 13173057 in words is "thirteen million, one hundred seventy-three thousand, fifty-seven".