189549413 has 2 divisors, whose sum is σ = 189549414. Its totient is φ = 189549412.

The previous prime is 189549389. The next prime is 189549419. The reversal of 189549413 is 314945981.

189549413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130827844 + 58721569 = 11438^2 + 7663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189549413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189549419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94774706 + 94774707.

It is an arithmetic number, because the mean of its divisors is an integer number (94774707).

Almost surely, 2^189549413 is an apocalyptic number.

It is an amenable number.

189549413 is a deficient number, since it is larger than the sum of its proper divisors (1).

189549413 is an equidigital number, since it uses as much as digits as its factorization.

189549413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 44.

The square root of 189549413 is about 13767.6945419340. The cubic root of 189549413 is about 574.4348958430.

The spelling of 189549413 in words is "one hundred eighty-nine million, five hundred forty-nine thousand, four hundred thirteen".