29131379 has 4 divisors (see below), whose sum is σ = 29215200. Its totient is φ = 29047560.

The previous prime is 29131369. The next prime is 29131393. The reversal of 29131379 is 97313192.

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

It is a cyclic number.

It is not a de Polignac number, because 29131379 - 2¹² = 29127283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29131369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41387 + ... + 42084.

It is an arithmetic number, because the mean of its divisors is an integer number (7303800).

Almost surely, 2^29131379 is an apocalyptic number.

29131379 is a deficient number, since it is larger than the sum of its proper divisors (83821).

29131379 is an equidigital number, since it uses as much as digits as its factorization.

29131379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83820.

The product of its digits is 10206, while the sum is 35.

The square root of 29131379 is about 5397.3492568112. The cubic root of 29131379 is about 307.6949353349.

The spelling of 29131379 in words is "twenty-nine million, one hundred thirty-one thousand, three hundred seventy-nine".