189126549 has 16 divisors (see below), whose sum is σ = 280934400. Its totient is φ = 125748288.

The previous prime is 189126527. The next prime is 189126559. The reversal of 189126549 is 945621981.

189126549 is a `hidden beast` number, since 1 + 89 + 1 + 26 + 549 = 666.

It is not a de Polignac number, because 189126549 - 2⁵ = 189126517 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189126559) 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, 1197 + ... + 19485.

It is an arithmetic number, because the mean of its divisors is an integer number (17558400).

Almost surely, 2^189126549 is an apocalyptic number.

It is an amenable number.

189126549 is a deficient number, since it is larger than the sum of its proper divisors (91807851).

189126549 is a wasteful number, since it uses less digits than its factorization.

189126549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18681 (or 18675 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 189126549 is about 13752.3288573245. The cubic root of 189126549 is about 574.0074106616.

The spelling of 189126549 in words is "one hundred eighty-nine million, one hundred twenty-six thousand, five hundred forty-nine".