74351139 has 4 divisors (see below), whose sum is σ = 99134856. Its totient is φ = 49567424.

The previous prime is 74351119. The next prime is 74351141. The reversal of 74351139 is 93115347.

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 74351139 - 2¹¹ = 74349091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74351119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12391854 + ... + 12391859.

It is an arithmetic number, because the mean of its divisors is an integer number (24783714).

Almost surely, 2^74351139 is an apocalyptic number.

74351139 is a deficient number, since it is larger than the sum of its proper divisors (24783717).

74351139 is a wasteful number, since it uses less digits than its factorization.

74351139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24783716.

The product of its digits is 11340, while the sum is 33.

The square root of 74351139 is about 8622.7106526892. The cubic root of 74351139 is about 420.4966517049.

The spelling of 74351139 in words is "seventy-four million, three hundred fifty-one thousand, one hundred thirty-nine".