74725331 has 2 divisors, whose sum is σ = 74725332. Its totient is φ = 74725330.

The previous prime is 74725303. The next prime is 74725333. The reversal of 74725331 is 13352747.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74725331 - 2¹⁸ = 74463187 is a prime.

It is a super-2 number, since 2×74725331² = 11167750186119122, which contains 22 as substring.

Together with 74725333, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74725333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37362665 + 37362666.

It is an arithmetic number, because the mean of its divisors is an integer number (37362666).

Almost surely, 2^74725331 is an apocalyptic number.

74725331 is a deficient number, since it is larger than the sum of its proper divisors (1).

74725331 is an equidigital number, since it uses as much as digits as its factorization.

74725331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 32.

The square root of 74725331 is about 8644.3814700648. The cubic root of 74725331 is about 421.2008922317.

The spelling of 74725331 in words is "seventy-four million, seven hundred twenty-five thousand, three hundred thirty-one".