189475995 has 16 divisors (see below), whose sum is σ = 313616160. Its totient is φ = 97569024.

The previous prime is 189475991. The next prime is 189476003. The reversal of 189475995 is 599574981.

It is not a de Polignac number, because 189475995 - 2² = 189475991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189475991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217354 + ... + 218223.

It is an arithmetic number, because the mean of its divisors is an integer number (19601010).

Almost surely, 2^189475995 is an apocalyptic number.

189475995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

189475995 is a deficient number, since it is larger than the sum of its proper divisors (124140165).

189475995 is a wasteful number, since it uses less digits than its factorization.

189475995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435614.

The product of its digits is 4082400, while the sum is 57.

The square root of 189475995 is about 13765.0279694594. The cubic root of 189475995 is about 574.3607211520.

It can be divided in two parts, 18947 and 5995, that added together give a palindrome (24942).

The spelling of 189475995 in words is "one hundred eighty-nine million, four hundred seventy-five thousand, nine hundred ninety-five".