189725493 has 8 divisors (see below), whose sum is σ = 253108800. Its totient is φ = 126412928.

The previous prime is 189725489. The next prime is 189725519. The reversal of 189725493 is 394527981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 189725493 - 2² = 189725489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189725443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11073 + ... + 22406.

It is an arithmetic number, because the mean of its divisors is an integer number (31638600).

Almost surely, 2^189725493 is an apocalyptic number.

It is an amenable number.

189725493 is a deficient number, since it is larger than the sum of its proper divisors (63383307).

189725493 is a wasteful number, since it uses less digits than its factorization.

189725493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35371.

The product of its digits is 544320, while the sum is 48.

The square root of 189725493 is about 13774.0877374874. The cubic root of 189725493 is about 574.6127126127.

The spelling of 189725493 in words is "one hundred eighty-nine million, seven hundred twenty-five thousand, four hundred ninety-three".