189149413 has 2 divisors, whose sum is σ = 189149414. Its totient is φ = 189149412.

The previous prime is 189149399. The next prime is 189149417. The reversal of 189149413 is 314941981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165945924 + 23203489 = 12882^2 + 4817^2 .

It is a cyclic number.

It is not a de Polignac number, because 189149413 - 2⁹ = 189148901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189149417) 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, 94574706 + 94574707.

It is an arithmetic number, because the mean of its divisors is an integer number (94574707).

Almost surely, 2^189149413 is an apocalyptic number.

It is an amenable number.

189149413 is a deficient number, since it is larger than the sum of its proper divisors (1).

189149413 is an equidigital number, since it uses as much as digits as its factorization.

189149413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 40.

The square root of 189149413 is about 13753.1601095894. The cubic root of 189149413 is about 574.0305408121.

The spelling of 189149413 in words is "one hundred eighty-nine million, one hundred forty-nine thousand, four hundred thirteen".