189195753 has 4 divisors (see below), whose sum is σ = 252261008. Its totient is φ = 126130500.

The previous prime is 189195733. The next prime is 189195793. The reversal of 189195753 is 357591981.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 189195753 - 2⁸ = 189195497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189195733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31532623 + ... + 31532628.

It is an arithmetic number, because the mean of its divisors is an integer number (63065252).

Almost surely, 2^189195753 is an apocalyptic number.

It is an amenable number.

189195753 is a deficient number, since it is larger than the sum of its proper divisors (63065255).

189195753 is an equidigital number, since it uses as much as digits as its factorization.

189195753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63065254.

The product of its digits is 340200, while the sum is 48.

The square root of 189195753 is about 13754.8447101376. The cubic root of 189195753 is about 574.0774145204.

The spelling of 189195753 in words is "one hundred eighty-nine million, one hundred ninety-five thousand, seven hundred fifty-three".