29159491 has 4 divisors (see below), whose sum is σ = 29372472. Its totient is φ = 28946512.

The previous prime is 29159489. The next prime is 29159521. The reversal of 29159491 is 19495192.

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 29159491 - 2¹ = 29159489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29159401) 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, 106285 + ... + 106558.

It is an arithmetic number, because the mean of its divisors is an integer number (7343118).

Almost surely, 2^29159491 is an apocalyptic number.

29159491 is a deficient number, since it is larger than the sum of its proper divisors (212981).

29159491 is a wasteful number, since it uses less digits than its factorization.

29159491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212980.

The product of its digits is 29160, while the sum is 40.

The square root of 29159491 is about 5399.9528701647. The cubic root of 29159491 is about 307.7938794907.

The spelling of 29159491 in words is "twenty-nine million, one hundred fifty-nine thousand, four hundred ninety-one".