74482189 has 2 divisors, whose sum is σ = 74482190. Its totient is φ = 74482188.

The previous prime is 74482139. The next prime is 74482201. The reversal of 74482189 is 98128447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51008164 + 23474025 = 7142^2 + 4845^2 .

It is a cyclic number.

It is not a de Polignac number, because 74482189 - 2⁹ = 74481677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74482139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37241094 + 37241095.

It is an arithmetic number, because the mean of its divisors is an integer number (37241095).

Almost surely, 2^74482189 is an apocalyptic number.

It is an amenable number.

74482189 is a deficient number, since it is larger than the sum of its proper divisors (1).

74482189 is an equidigital number, since it uses as much as digits as its factorization.

74482189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 43.

The square root of 74482189 is about 8630.3064256143. The cubic root of 74482189 is about 420.7435600118.

The spelling of 74482189 in words is "seventy-four million, four hundred eighty-two thousand, one hundred eighty-nine".