74533009 has 2 divisors, whose sum is σ = 74533010. Its totient is φ = 74533008.

The previous prime is 74532973. The next prime is 74533013. The reversal of 74533009 is 90033547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40602384 + 33930625 = 6372^2 + 5825^2 .

It is a cyclic number.

It is not a de Polignac number, because 74533009 - 2⁷ = 74532881 is a prime.

It is not a weakly prime, because it can be changed into another prime (74533079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37266504 + 37266505.

It is an arithmetic number, because the mean of its divisors is an integer number (37266505).

Almost surely, 2^74533009 is an apocalyptic number.

It is an amenable number.

74533009 is a deficient number, since it is larger than the sum of its proper divisors (1).

74533009 is an equidigital number, since it uses as much as digits as its factorization.

74533009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 74533009 is about 8633.2501990849. The cubic root of 74533009 is about 420.8392308773.

The spelling of 74533009 in words is "seventy-four million, five hundred thirty-three thousand, nine".