189995875 has 8 divisors (see below), whose sum is σ = 237115008. Its totient is φ = 151996600.

The previous prime is 189995873. The next prime is 189995899. The reversal of 189995875 is 578599981.

It is not a de Polignac number, because 189995875 - 2¹ = 189995873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189995873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 759859 + ... + 760108.

It is an arithmetic number, because the mean of its divisors is an integer number (29639376).

Almost surely, 2^189995875 is an apocalyptic number.

189995875 is a deficient number, since it is larger than the sum of its proper divisors (47119133).

189995875 is an equidigital number, since it uses as much as digits as its factorization.

189995875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519982 (or 1519972 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 61.

The square root of 189995875 is about 13783.8991218015. The cubic root of 189995875 is about 574.8855474783.

The spelling of 189995875 in words is "one hundred eighty-nine million, nine hundred ninety-five thousand, eight hundred seventy-five".