13041731 has 12 divisors (see below), whose sum is σ = 13846392. Its totient is φ = 12276000.

The previous prime is 13041683. The next prime is 13041767. The reversal of 13041731 is 13714031.

It is a happy number.

It is not a de Polignac number, because 13041731 - 2²² = 8847427 is a prime.

It is a super-2 number, since 2×13041731² = 340173494952722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13041331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39236 + ... + 39566.

It is an arithmetic number, because the mean of its divisors is an integer number (1153866).

Almost surely, 2^13041731 is an apocalyptic number.

13041731 is a deficient number, since it is larger than the sum of its proper divisors (804661).

13041731 is an equidigital number, since it uses as much as digits as its factorization.

13041731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 13041731 is about 3611.3336871577. Note that the first 3 decimals coincide. The cubic root of 13041731 is about 235.3847988746.

Adding to 13041731 its reverse (13714031), we get a palindrome (26755762).

The spelling of 13041731 in words is "thirteen million, forty-one thousand, seven hundred thirty-one".