189255379 has 4 divisors (see below), whose sum is σ = 189355320. Its totient is φ = 189155440.

The previous prime is 189255377. The next prime is 189255389. The reversal of 189255379 is 973552981.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 189255379 - 2¹ = 189255377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189255377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47074 + ... + 50935.

It is an arithmetic number, because the mean of its divisors is an integer number (47338830).

Almost surely, 2^189255379 is an apocalyptic number.

189255379 is a deficient number, since it is larger than the sum of its proper divisors (99941).

189255379 is an equidigital number, since it uses as much as digits as its factorization.

189255379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99940.

The product of its digits is 680400, while the sum is 49.

The square root of 189255379 is about 13757.0119938888. The cubic root of 189255379 is about 574.1377159879.

The spelling of 189255379 in words is "one hundred eighty-nine million, two hundred fifty-five thousand, three hundred seventy-nine".