74862131 has 2 divisors, whose sum is σ = 74862132. Its totient is φ = 74862130.

The previous prime is 74862121. The next prime is 74862149. The reversal of 74862131 is 13126847.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74862131 is a prime.

It is a super-2 number, since 2×74862131² = 11208677315722322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74862121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37431065 + 37431066.

It is an arithmetic number, because the mean of its divisors is an integer number (37431066).

Almost surely, 2^74862131 is an apocalyptic number.

74862131 is a deficient number, since it is larger than the sum of its proper divisors (1).

74862131 is an equidigital number, since it uses as much as digits as its factorization.

74862131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 32.

The square root of 74862131 is about 8652.2905059874. The cubic root of 74862131 is about 421.4577669983.

Adding to 74862131 its reverse (13126847), we get a palindrome (87988978).

The spelling of 74862131 in words is "seventy-four million, eight hundred sixty-two thousand, one hundred thirty-one".