74922481 has 2 divisors, whose sum is σ = 74922482. Its totient is φ = 74922480.

The previous prime is 74922479. The next prime is 74922499. The reversal of 74922481 is 18422947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74909025 + 13456 = 8655^2 + 116^2 .

It is a cyclic number.

It is not a de Polignac number, because 74922481 - 2¹ = 74922479 is a prime.

It is a super-2 number, since 2×74922481² = 11226756318390722, which contains 22 as substring.

Together with 74922479, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74922481.

It is not a weakly prime, because it can be changed into another prime (74922401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37461240 + 37461241.

It is an arithmetic number, because the mean of its divisors is an integer number (37461241).

Almost surely, 2^74922481 is an apocalyptic number.

It is an amenable number.

74922481 is a deficient number, since it is larger than the sum of its proper divisors (1).

74922481 is an equidigital number, since it uses as much as digits as its factorization.

74922481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 37.

The square root of 74922481 is about 8655.7773192244. Note that the first 3 decimals coincide. The cubic root of 74922481 is about 421.5709891048.

The spelling of 74922481 in words is "seventy-four million, nine hundred twenty-two thousand, four hundred eighty-one".