13750131 has 4 divisors (see below), whose sum is σ = 18333512. Its totient is φ = 9166752.

The previous prime is 13750123. The next prime is 13750133. The reversal of 13750131 is 13105731.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13750131 - 2³ = 13750123 is a prime.

It is a super-2 number, since 2×13750131² = 378132205034322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13750098 and 13750107.

It is not an unprimeable number, because it can be changed into a prime (13750133) 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, 2291686 + ... + 2291691.

It is an arithmetic number, because the mean of its divisors is an integer number (4583378).

Almost surely, 2^13750131 is an apocalyptic number.

13750131 is a deficient number, since it is larger than the sum of its proper divisors (4583381).

13750131 is an equidigital number, since it uses as much as digits as its factorization.

13750131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4583380.

The product of its (nonzero) digits is 315, while the sum is 21.

The square root of 13750131 is about 3708.1169075422. The cubic root of 13750131 is about 239.5717536701.

Adding to 13750131 its reverse (13105731), we get a palindrome (26855862).

The spelling of 13750131 in words is "thirteen million, seven hundred fifty thousand, one hundred thirty-one".