189413089 has 4 divisors (see below), whose sum is σ = 189532420. Its totient is φ = 189293760.

The previous prime is 189413083. The next prime is 189413111. The reversal of 189413089 is 980314981.

189413089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 148644864 + 40768225 = 12192^2 + 6385^2 .

It is a cyclic number.

It is not a de Polignac number, because 189413089 - 2²¹ = 187315937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189413083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57252 + ... + 60469.

It is an arithmetic number, because the mean of its divisors is an integer number (47383105).

Almost surely, 2^189413089 is an apocalyptic number.

It is an amenable number.

189413089 is a deficient number, since it is larger than the sum of its proper divisors (119331).

189413089 is a wasteful number, since it uses less digits than its factorization.

189413089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119330.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 189413089 is about 13762.7427862327. The cubic root of 189413089 is about 574.2971515607.

The spelling of 189413089 in words is "one hundred eighty-nine million, four hundred thirteen thousand, eighty-nine".