29139345 has 48 divisors (see below), whose sum is σ = 54250560. Its totient is φ = 14986944.

The previous prime is 29139317. The next prime is 29139353. The reversal of 29139345 is 54393192.

It is a happy number.

It is not a de Polignac number, because 29139345 - 2⁶ = 29139281 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34822 + ... + 35648.

It is an arithmetic number, because the mean of its divisors is an integer number (1130220).

Almost surely, 2^29139345 is an apocalyptic number.

It is an amenable number.

29139345 is a deficient number, since it is larger than the sum of its proper divisors (25111215).

29139345 is an equidigital number, since it uses as much as digits as its factorization.

29139345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876 (or 864 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 29139345 is about 5398.0871612081. The cubic root of 29139345 is about 307.7229792582.

The spelling of 29139345 in words is "twenty-nine million, one hundred thirty-nine thousand, three hundred forty-five".