74122131 has 8 divisors (see below), whose sum is σ = 99436480. Its totient is φ = 49111272.

The previous prime is 74122093. The next prime is 74122157. The reversal of 74122131 is 13122147.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74122131 - 2¹³ = 74113939 is a prime.

It is a super-2 number, since 2×74122131² = 10988180607962322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74122098 and 74122107.

It is not an unprimeable number, because it can be changed into a prime (74122171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75301 + ... + 76278.

It is an arithmetic number, because the mean of its divisors is an integer number (12429560).

Almost surely, 2^74122131 is an apocalyptic number.

74122131 is a deficient number, since it is larger than the sum of its proper divisors (25314349).

74122131 is a wasteful number, since it uses less digits than its factorization.

74122131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151745.

The product of its digits is 336, while the sum is 21.

The square root of 74122131 is about 8609.4210606753. The cubic root of 74122131 is about 420.0644855634.

Adding to 74122131 its reverse (13122147), we get a palindrome (87244278).

The spelling of 74122131 in words is "seventy-four million, one hundred twenty-two thousand, one hundred thirty-one".