74298131 has 4 divisors (see below), whose sum is σ = 74606664. Its totient is φ = 73989600.

The previous prime is 74298127. The next prime is 74298139. The reversal of 74298131 is 13189247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13189247 = 113 ⋅116719.

It is a cyclic number.

It is not a de Polignac number, because 74298131 - 2² = 74298127 is a prime.

It is a super-2 number, since 2×74298131² = 11040424540186322, 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 = 74298091 and 74298100.

It is not an unprimeable number, because it can be changed into a prime (74298139) 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, 153905 + ... + 154386.

It is an arithmetic number, because the mean of its divisors is an integer number (18651666).

Almost surely, 2^74298131 is an apocalyptic number.

74298131 is a deficient number, since it is larger than the sum of its proper divisors (308533).

74298131 is a wasteful number, since it uses less digits than its factorization.

74298131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308532.

The product of its digits is 12096, while the sum is 35.

The square root of 74298131 is about 8619.6363612394. The cubic root of 74298131 is about 420.3966981333.

The spelling of 74298131 in words is "seventy-four million, two hundred ninety-eight thousand, one hundred thirty-one".