189654953 has 8 divisors (see below), whose sum is σ = 191056320. Its totient is φ = 188259280.

The previous prime is 189654947. The next prime is 189654977. The reversal of 189654953 is 359456981.

It is a happy number.

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 189654953 - 2⁴ = 189654937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189654923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82526 + ... + 84792.

It is an arithmetic number, because the mean of its divisors is an integer number (23882040).

Almost surely, 2^189654953 is an apocalyptic number.

It is an amenable number.

189654953 is a deficient number, since it is larger than the sum of its proper divisors (1401367).

189654953 is a wasteful number, since it uses less digits than its factorization.

189654953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847.

The product of its digits is 1166400, while the sum is 50.

The square root of 189654953 is about 13771.5268942845. The cubic root of 189654953 is about 574.5414900540.

The spelling of 189654953 in words is "one hundred eighty-nine million, six hundred fifty-four thousand, nine hundred fifty-three".