13625131 has 8 divisors (see below), whose sum is σ = 15311520. Its totient is φ = 12029952.

The previous prime is 13625123. The next prime is 13625153. The reversal of 13625131 is 13152631.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13625131 - 2³ = 13625123 is a prime.

It is a super-2 number, since 2×13625131² = 371288389534322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13625431) 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, 22486 + ... + 23083.

It is an arithmetic number, because the mean of its divisors is an integer number (1913940).

Almost surely, 2^13625131 is an apocalyptic number.

13625131 is a deficient number, since it is larger than the sum of its proper divisors (1686389).

13625131 is a wasteful number, since it uses less digits than its factorization.

13625131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45605.

The product of its digits is 540, while the sum is 22.

The square root of 13625131 is about 3691.2235098948. The cubic root of 13625131 is about 238.8435745149.

Adding to 13625131 its reverse (13152631), we get a palindrome (26777762).

The spelling of 13625131 in words is "thirteen million, six hundred twenty-five thousand, one hundred thirty-one".