13157547 has 16 divisors (see below), whose sum is σ = 19504128. Its totient is φ = 7835040.

The previous prime is 13157539. The next prime is 13157563. The reversal of 13157547 is 74575131.

It is not a de Polignac number, because 13157547 - 2³ = 13157539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13157537) 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 in 15 ways as a sum of consecutive naturals, for example, 4233 + ... + 6650.

It is an arithmetic number, because the mean of its divisors is an integer number (1219008).

Almost surely, 2^13157547 is an apocalyptic number.

13157547 is a deficient number, since it is larger than the sum of its proper divisors (6346581).

13157547 is a wasteful number, since it uses less digits than its factorization.

13157547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10930.

The product of its digits is 14700, while the sum is 33.

The square root of 13157547 is about 3627.3333180175. Note that the first 4 decimals coincide. The cubic root of 13157547 is about 236.0795181145.

The spelling of 13157547 in words is "thirteen million, one hundred fifty-seven thousand, five hundred forty-seven".