29118491 has 4 divisors (see below), whose sum is σ = 29146800. Its totient is φ = 29090184.

The previous prime is 29118457. The next prime is 29118493. The reversal of 29118491 is 19481192.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29118491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29118493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12551 + ... + 14688.

It is an arithmetic number, because the mean of its divisors is an integer number (7286700).

Almost surely, 2^29118491 is an apocalyptic number.

29118491 is a deficient number, since it is larger than the sum of its proper divisors (28309).

29118491 is a wasteful number, since it uses less digits than its factorization.

29118491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28308.

The product of its digits is 5184, while the sum is 35.

The square root of 29118491 is about 5396.1552053291. The cubic root of 29118491 is about 307.6495529167.

The spelling of 29118491 in words is "twenty-nine million, one hundred eighteen thousand, four hundred ninety-one".