74246189 has 2 divisors, whose sum is σ = 74246190. Its totient is φ = 74246188.

The previous prime is 74246173. The next prime is 74246201. The reversal of 74246189 is 98164247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52809289 + 21436900 = 7267^2 + 4630^2 .

It is a cyclic number.

It is not a de Polignac number, because 74246189 - 2⁴ = 74246173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74243189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37123094 + 37123095.

It is an arithmetic number, because the mean of its divisors is an integer number (37123095).

Almost surely, 2^74246189 is an apocalyptic number.

It is an amenable number.

74246189 is a deficient number, since it is larger than the sum of its proper divisors (1).

74246189 is an equidigital number, since it uses as much as digits as its factorization.

74246189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 41.

The square root of 74246189 is about 8616.6228303205. The cubic root of 74246189 is about 420.2987085178.

The spelling of 74246189 in words is "seventy-four million, two hundred forty-six thousand, one hundred eighty-nine".