189306045 has 16 divisors (see below), whose sum is σ = 336544320. Its totient is φ = 100963152.

The previous prime is 189306037. The next prime is 189306049. The reversal of 189306045 is 540603981.

189306045 is a `hidden beast` number, since 18 + 9 + 30 + 604 + 5 = 666.

189306045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189306045 - 2³ = 189306037 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189306049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 700999 + ... + 701268.

It is an arithmetic number, because the mean of its divisors is an integer number (21034020).

Almost surely, 2^189306045 is an apocalyptic number.

189306045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

189306045 is a deficient number, since it is larger than the sum of its proper divisors (147238275).

189306045 is a wasteful number, since it uses less digits than its factorization.

189306045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402281 (or 1402275 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 189306045 is about 13758.8533315825. The cubic root of 189306045 is about 574.1889459999.

The spelling of 189306045 in words is "one hundred eighty-nine million, three hundred six thousand, forty-five".