13157653 has 4 divisors (see below), whose sum is σ = 13215340. Its totient is φ = 13099968.

The previous prime is 13157647. The next prime is 13157659. The reversal of 13157653 is 35675131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35675131 = 5087 ⋅7013.

It is an interprime number because it is at equal distance from previous prime (13157647) and next prime (13157659).

It can be written as a sum of positive squares in 2 ways, for example, as 11135569 + 2022084 = 3337^2 + 1422^2 .

It is a cyclic number.

It is not a de Polignac number, because 13157653 - 2¹⁷ = 13026581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13157659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28500 + ... + 28957.

It is an arithmetic number, because the mean of its divisors is an integer number (3303835).

Almost surely, 2^13157653 is an apocalyptic number.

It is an amenable number.

13157653 is a deficient number, since it is larger than the sum of its proper divisors (57687).

13157653 is an equidigital number, since it uses as much as digits as its factorization.

13157653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57686.

The product of its digits is 9450, while the sum is 31.

The square root of 13157653 is about 3627.3479292728. The cubic root of 13157653 is about 236.0801520818.

The spelling of 13157653 in words is "thirteen million, one hundred fifty-seven thousand, six hundred fifty-three".