189190775 has 6 divisors (see below), whose sum is σ = 234596592. Its totient is φ = 151352600.

The previous prime is 189190763. The next prime is 189190811. The reversal of 189190775 is 577091981.

It is not a de Polignac number, because 189190775 - 2¹⁶ = 189125239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3783791 + ... + 3783840.

It is an arithmetic number, because the mean of its divisors is an integer number (39099432).

Almost surely, 2^189190775 is an apocalyptic number.

189190775 is a deficient number, since it is larger than the sum of its proper divisors (45405817).

189190775 is an equidigital number, since it uses as much as digits as its factorization.

189190775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7567641 (or 7567636 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 47.

The square root of 189190775 is about 13754.6637545234. The cubic root of 189190775 is about 574.0723795546.

The spelling of 189190775 in words is "one hundred eighty-nine million, one hundred ninety thousand, seven hundred seventy-five".