29149691 has 4 divisors (see below), whose sum is σ = 29249472. Its totient is φ = 29049912.

The previous prime is 29149663. The next prime is 29149699. The reversal of 29149691 is 19694192.

It is a happy number.

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-29149691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29149699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49451 + ... + 50036.

It is an arithmetic number, because the mean of its divisors is an integer number (7312368).

Almost surely, 2^29149691 is an apocalyptic number.

29149691 is a deficient number, since it is larger than the sum of its proper divisors (99781).

29149691 is an equidigital number, since it uses as much as digits as its factorization.

29149691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99780.

The product of its digits is 34992, while the sum is 41.

The square root of 29149691 is about 5399.0453785831. The cubic root of 29149691 is about 307.7593942293.

The spelling of 29149691 in words is "twenty-nine million, one hundred forty-nine thousand, six hundred ninety-one".