13163031 has 36 divisors (see below), whose sum is σ = 22443408. Its totient is φ = 7281792.

The previous prime is 13162993. The next prime is 13163041. The reversal of 13163031 is 13036131.

13163031 is a `hidden beast` number, since 1 + 3 + 1 + 630 + 31 = 666.

13163031 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13163031 - 2⁶ = 13162967 is a prime.

It is a super-2 number, since 2×13163031² = 346530770213922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13162995 and 13163013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13163041) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 116431 + ... + 116543.

It is an arithmetic number, because the mean of its divisors is an integer number (623428).

Almost surely, 2^13163031 is an apocalyptic number.

13163031 is a deficient number, since it is larger than the sum of its proper divisors (9280377).

13163031 is a wasteful number, since it uses less digits than its factorization.

13163031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 13163031 is about 3628.0891664897. The cubic root of 13163031 is about 236.1123124809.

Adding to 13163031 its reverse (13036131), we get a palindrome (26199162).

The spelling of 13163031 in words is "thirteen million, one hundred sixty-three thousand, thirty-one".