29011131 has 6 divisors (see below), whose sum is σ = 41904980. Its totient is φ = 19340748.

The previous prime is 29011123. The next prime is 29011153. The reversal of 29011131 is 13111092.

It is not a de Polignac number, because 29011131 - 2³ = 29011123 is a prime.

It is a super-2 number, since 2×29011131² = 1683291443798322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29011121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1611721 + ... + 1611738.

Almost surely, 2^29011131 is an apocalyptic number.

29011131 is a deficient number, since it is larger than the sum of its proper divisors (12893849).

29011131 is a wasteful number, since it uses less digits than its factorization.

29011131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3223465 (or 3223462 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 29011131 is about 5386.1981953879. The cubic root of 29011131 is about 307.2709855389.

The spelling of 29011131 in words is "twenty-nine million, eleven thousand, one hundred thirty-one".