74563249 has 2 divisors, whose sum is σ = 74563250. Its totient is φ = 74563248.

The previous prime is 74563219. The next prime is 74563259. The reversal of 74563249 is 94236547.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55771024 + 18792225 = 7468^2 + 4335^2 .

It is a cyclic number.

It is not a de Polignac number, because 74563249 - 2⁹ = 74562737 is a prime.

It is not a weakly prime, because it can be changed into another prime (74563219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37281624 + 37281625.

It is an arithmetic number, because the mean of its divisors is an integer number (37281625).

Almost surely, 2^74563249 is an apocalyptic number.

It is an amenable number.

74563249 is a deficient number, since it is larger than the sum of its proper divisors (1).

74563249 is an equidigital number, since it uses as much as digits as its factorization.

74563249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 40.

The square root of 74563249 is about 8635.0013896930. The cubic root of 74563249 is about 420.8961383593.

The spelling of 74563249 in words is "seventy-four million, five hundred sixty-three thousand, two hundred forty-nine".