189459955 has 8 divisors (see below), whose sum is σ = 227562192. Its totient is φ = 151427808.

The previous prime is 189459937. The next prime is 189459979. The reversal of 189459955 is 559954981.

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 189459955 - 2⁵ = 189459923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189459896 and 189459905.

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, 11377 + ... + 22546.

It is an arithmetic number, because the mean of its divisors is an integer number (28445274).

Almost surely, 2^189459955 is an apocalyptic number.

189459955 is a deficient number, since it is larger than the sum of its proper divisors (38102237).

189459955 is a wasteful number, since it uses less digits than its factorization.

189459955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35045.

The product of its digits is 2916000, while the sum is 55.

The square root of 189459955 is about 13764.4453211889. The cubic root of 189459955 is about 574.3445132837.

It can be divided in two parts, 18945 and 9955, that added together give a square (28900 = 170²).

The spelling of 189459955 in words is "one hundred eighty-nine million, four hundred fifty-nine thousand, nine hundred fifty-five".