74131771 has 4 divisors (see below), whose sum is σ = 84722032. Its totient is φ = 63541512.

The previous prime is 74131769. The next prime is 74131817. The reversal of 74131771 is 17713147.

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 74131771 - 2¹ = 74131769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74131741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5295120 + ... + 5295133.

It is an arithmetic number, because the mean of its divisors is an integer number (21180508).

Almost surely, 2^74131771 is an apocalyptic number.

74131771 is a deficient number, since it is larger than the sum of its proper divisors (10590261).

74131771 is a wasteful number, since it uses less digits than its factorization.

74131771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10590260.

The product of its digits is 4116, while the sum is 31.

The square root of 74131771 is about 8609.9808942877. The cubic root of 74131771 is about 420.0826953569.

The spelling of 74131771 in words is "seventy-four million, one hundred thirty-one thousand, seven hundred seventy-one".