189464555 has 8 divisors (see below), whose sum is σ = 259837152. Its totient is φ = 129918528.

The previous prime is 189464503. The next prime is 189464573. The reversal of 189464555 is 555464981.

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 189464555 - 2⁶ = 189464491 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2706602 + ... + 2706671.

It is an arithmetic number, because the mean of its divisors is an integer number (32479644).

Almost surely, 2^189464555 is an apocalyptic number.

189464555 is a deficient number, since it is larger than the sum of its proper divisors (70372597).

189464555 is an equidigital number, since it uses as much as digits as its factorization.

189464555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5413285.

The product of its digits is 864000, while the sum is 47.

The square root of 189464555 is about 13764.6124173549. The cubic root of 189464555 is about 574.3491615190.

The spelling of 189464555 in words is "one hundred eighty-nine million, four hundred sixty-four thousand, five hundred fifty-five".