13135857 has 8 divisors (see below), whose sum is σ = 20016576. Its totient is φ = 7506192.

The previous prime is 13135823. The next prime is 13135861. The reversal of 13135857 is 75853131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13135857 - 2⁷ = 13135729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13135807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312738 + ... + 312779.

It is an arithmetic number, because the mean of its divisors is an integer number (2502072).

Almost surely, 2^13135857 is an apocalyptic number.

It is an amenable number.

13135857 is a deficient number, since it is larger than the sum of its proper divisors (6880719).

13135857 is an equidigital number, since it uses as much as digits as its factorization.

13135857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625527.

The product of its digits is 12600, while the sum is 33.

The square root of 13135857 is about 3624.3422851602. The cubic root of 13135857 is about 235.9497223644.

Adding to 13135857 its reverse (75853131), we get a palindrome (88988988).

The spelling of 13135857 in words is "thirteen million, one hundred thirty-five thousand, eight hundred fifty-seven".