74134731 has 16 divisors (see below), whose sum is σ = 108039168. Its totient is φ = 44844000.

The previous prime is 74134699. The next prime is 74134747. The reversal of 74134731 is 13743147.

It is not a de Polignac number, because 74134731 - 2⁵ = 74134699 is a prime.

It is a super-2 number, since 2×74134731² = 10991916680884722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74134771) 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, 18181 + ... + 21881.

It is an arithmetic number, because the mean of its divisors is an integer number (6752448).

Almost surely, 2^74134731 is an apocalyptic number.

74134731 is a deficient number, since it is larger than the sum of its proper divisors (33904437).

74134731 is a wasteful number, since it uses less digits than its factorization.

74134731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4322.

The product of its digits is 7056, while the sum is 30.

The square root of 74134731 is about 8610.1527861008. The cubic root of 74134731 is about 420.0882864290.

Adding to 74134731 its reverse (13743147), we get a palindrome (87877878).

The spelling of 74134731 in words is "seventy-four million, one hundred thirty-four thousand, seven hundred thirty-one".