189167493 has 16 divisors (see below), whose sum is σ = 261748800. Its totient is φ = 121376640.

The previous prime is 189167491. The next prime is 189167507. The reversal of 189167493 is 394761981.

It is a happy number.

It is not a de Polignac number, because 189167493 - 2¹ = 189167491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189167491) 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, 25513 + ... + 32081.

It is an arithmetic number, because the mean of its divisors is an integer number (16359300).

Almost surely, 2^189167493 is an apocalyptic number.

It is an amenable number.

189167493 is a deficient number, since it is larger than the sum of its proper divisors (72581307).

189167493 is a wasteful number, since it uses less digits than its factorization.

189167493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6932.

The product of its digits is 326592, while the sum is 48.

The square root of 189167493 is about 13753.8173973628. The cubic root of 189167493 is about 574.0488299542.

The spelling of 189167493 in words is "one hundred eighty-nine million, one hundred sixty-seven thousand, four hundred ninety-three".