74045139 has 16 divisors (see below), whose sum is σ = 115584000. Its totient is φ = 41279040.

The previous prime is 74045137. The next prime is 74045203. The reversal of 74045139 is 93154047.

It is not a de Polignac number, because 74045139 - 2¹ = 74045137 is a prime.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (74045131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42139 + ... + 43860.

It is an arithmetic number, because the mean of its divisors is an integer number (7224000).

Almost surely, 2^74045139 is an apocalyptic number.

74045139 is a deficient number, since it is larger than the sum of its proper divisors (41538861).

74045139 is a wasteful number, since it uses less digits than its factorization.

74045139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86050.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 74045139 is about 8604.9485181493. The cubic root of 74045139 is about 419.9189923131.

The spelling of 74045139 in words is "seventy-four million, forty-five thousand, one hundred thirty-nine".