189459153 has 24 divisors (see below), whose sum is σ = 300284712. Its totient is φ = 114386688.

The previous prime is 189459131. The next prime is 189459167. The reversal of 189459153 is 351954981.

189459153 is a `hidden beast` number, since 1 + 8 + 9 + 4 + 591 + 53 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3873024 + 185586129 = 1968^2 + 13623^2 .

It is not a de Polignac number, because 189459153 - 2²¹ = 187362001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 189459099 and 189459108.

It is not an unprimeable number, because it can be changed into a prime (189459173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9076 + ... + 21477.

It is an arithmetic number, because the mean of its divisors is an integer number (12511863).

Almost surely, 2^189459153 is an apocalyptic number.

189459153 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

189459153 is a deficient number, since it is larger than the sum of its proper divisors (110825559).

189459153 is a wasteful number, since it uses less digits than its factorization.

189459153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30625 (or 30622 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 189459153 is about 13764.4161881280. The cubic root of 189459153 is about 574.3437028662.

The spelling of 189459153 in words is "one hundred eighty-nine million, four hundred fifty-nine thousand, one hundred fifty-three".