189462561 has 8 divisors (see below), whose sum is σ = 254167200. Its totient is φ = 125533152.

The previous prime is 189462551. The next prime is 189462563. The reversal of 189462561 is 165264981.

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

It is not a de Polignac number, because 189462561 - 2⁵ = 189462529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189462563) 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 in 7 ways as a sum of consecutive naturals, for example, 193236 + ... + 194213.

It is an arithmetic number, because the mean of its divisors is an integer number (31770900).

Almost surely, 2^189462561 is an apocalyptic number.

It is an amenable number.

189462561 is a deficient number, since it is larger than the sum of its proper divisors (64704639).

189462561 is a wasteful number, since it uses less digits than its factorization.

189462561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387615.

The product of its digits is 103680, while the sum is 42.

The square root of 189462561 is about 13764.5399850485. The cubic root of 189462561 is about 574.3471466193.

The spelling of 189462561 in words is "one hundred eighty-nine million, four hundred sixty-two thousand, five hundred sixty-one".