29131113 has 12 divisors (see below), whose sum is σ = 42694064. Its totient is φ = 17655000.

The previous prime is 29131111. The next prime is 29131163. The reversal of 29131113 is 31113192.

It is not a de Polignac number, because 29131113 - 2¹ = 29131111 is a prime.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29131113.

It is not an unprimeable number, because it can be changed into a prime (29131111) 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, 39763 + ... + 40488.

Almost surely, 2^29131113 is an apocalyptic number.

It is an amenable number.

29131113 is a deficient number, since it is larger than the sum of its proper divisors (13562951).

29131113 is a wasteful number, since it uses less digits than its factorization.

29131113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80276 (or 80265 counting only the distinct ones).

The product of its digits is 162, while the sum is 21.

The square root of 29131113 is about 5397.3246150292. The cubic root of 29131113 is about 307.6939988064.

The spelling of 29131113 in words is "twenty-nine million, one hundred thirty-one thousand, one hundred thirteen".