13748931 has 24 divisors (see below), whose sum is σ = 22819680. Its totient is φ = 7814016.

The previous prime is 13748897. The next prime is 13748939. The reversal of 13748931 is 13984731.

It is a happy number.

13748931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13748931 - 2⁷ = 13748803 is a prime.

It is a super-2 number, since 2×13748931² = 378066207285522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13748939) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13951 + ... + 14903.

It is an arithmetic number, because the mean of its divisors is an integer number (950820).

Almost surely, 2^13748931 is an apocalyptic number.

13748931 is a deficient number, since it is larger than the sum of its proper divisors (9070749).

13748931 is a wasteful number, since it uses less digits than its factorization.

13748931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195 (or 1192 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 13748931 is about 3707.9550968155. The cubic root of 13748931 is about 239.5647841737.

The spelling of 13748931 in words is "thirteen million, seven hundred forty-eight thousand, nine hundred thirty-one".