74211131 has 12 divisors (see below), whose sum is σ = 78693264. Its totient is φ = 69973200.

The previous prime is 74211121. The next prime is 74211139. The reversal of 74211131 is 13111247.

It is a happy number.

It is not a de Polignac number, because 74211131 - 2¹⁰ = 74210107 is a prime.

It is a super-2 number, since 2×74211131² = 11014583928598322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74211139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111941 + ... + 112601.

It is an arithmetic number, because the mean of its divisors is an integer number (6557772).

Almost surely, 2^74211131 is an apocalyptic number.

74211131 is a deficient number, since it is larger than the sum of its proper divisors (4482133).

74211131 is a wasteful number, since it uses less digits than its factorization.

74211131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010 (or 991 counting only the distinct ones).

The product of its digits is 168, while the sum is 20.

The square root of 74211131 is about 8614.5882664234. The cubic root of 74211131 is about 420.2325450683.

Adding to 74211131 its reverse (13111247), we get a palindrome (87322378).

The spelling of 74211131 in words is "seventy-four million, two hundred eleven thousand, one hundred thirty-one".