74501131 has 2 divisors, whose sum is σ = 74501132. Its totient is φ = 74501130.

The previous prime is 74501113. The next prime is 74501137. The reversal of 74501131 is 13110547.

Together with previous prime (74501113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74501131 - 2⁹ = 74500619 is a prime.

It is a super-2 number, since 2×74501131² = 11100837040558322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74501137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37250565 + 37250566.

It is an arithmetic number, because the mean of its divisors is an integer number (37250566).

Almost surely, 2^74501131 is an apocalyptic number.

74501131 is a deficient number, since it is larger than the sum of its proper divisors (1).

74501131 is an equidigital number, since it uses as much as digits as its factorization.

74501131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 74501131 is about 8631.4037676383. The cubic root of 74501131 is about 420.7792242384.

Adding to 74501131 its reverse (13110547), we get a palindrome (87611678).

The spelling of 74501131 in words is "seventy-four million, five hundred one thousand, one hundred thirty-one".