74552189 has 2 divisors, whose sum is σ = 74552190. Its totient is φ = 74552188.

The previous prime is 74552183. The next prime is 74552197. The reversal of 74552189 is 98125547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44488900 + 30063289 = 6670^2 + 5483^2 .

It is a cyclic number.

It is not a de Polignac number, because 74552189 - 2⁸ = 74551933 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74552183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37276094 + 37276095.

It is an arithmetic number, because the mean of its divisors is an integer number (37276095).

Almost surely, 2^74552189 is an apocalyptic number.

It is an amenable number.

74552189 is a deficient number, since it is larger than the sum of its proper divisors (1).

74552189 is an equidigital number, since it uses as much as digits as its factorization.

74552189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 41.

The square root of 74552189 is about 8634.3609491380. The cubic root of 74552189 is about 420.8753267596.

The spelling of 74552189 in words is "seventy-four million, five hundred fifty-two thousand, one hundred eighty-nine".