189195544 has 8 divisors (see below), whose sum is σ = 354741660. Its totient is φ = 94597768.

The previous prime is 189195529. The next prime is 189195547. The reversal of 189195544 is 445591981.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 189195494 and 189195503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189195547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11824714 + ... + 11824729.

Almost surely, 2^189195544 is an apocalyptic number.

It is an amenable number.

189195544 is a deficient number, since it is larger than the sum of its proper divisors (165546116).

189195544 is a wasteful number, since it uses less digits than its factorization.

189195544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23649449 (or 23649445 counting only the distinct ones).

The product of its digits is 259200, while the sum is 46.

The square root of 189195544 is about 13754.8371128124. The cubic root of 189195544 is about 574.0772031305.

The spelling of 189195544 in words is "one hundred eighty-nine million, one hundred ninety-five thousand, five hundred forty-four".