13124457 has 8 divisors (see below), whose sum is σ = 19443680. Its totient is φ = 8749620.

The previous prime is 13124437. The next prime is 13124483. The reversal of 13124457 is 75442131.

It is not a de Polignac number, because 13124457 - 2⁶ = 13124393 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: 486091 = 13124457 / (1 + 3 + 1 + 2 + 4 + 4 + 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 13124457.

It is not an unprimeable number, because it can be changed into a prime (13124437) 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, 243019 + ... + 243072.

It is an arithmetic number, because the mean of its divisors is an integer number (2430460).

Almost surely, 2^13124457 is an apocalyptic number.

It is an amenable number.

13124457 is a deficient number, since it is larger than the sum of its proper divisors (6319223).

13124457 is an equidigital number, since it uses as much as digits as its factorization.

13124457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486100 (or 486094 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 13124457 is about 3622.7692446525. The cubic root of 13124457 is about 235.8814460086.

Adding to 13124457 its reverse (75442131), we get a palindrome (88566588).

The spelling of 13124457 in words is "thirteen million, one hundred twenty-four thousand, four hundred fifty-seven".