189137835 has 48 divisors (see below), whose sum is σ = 360019296. Its totient is φ = 94929408.

The previous prime is 189137813. The next prime is 189137873. The reversal of 189137835 is 538731981.

It is not a de Polignac number, because 189137835 - 2⁹ = 189137323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16077 + ... + 25233.

It is an arithmetic number, because the mean of its divisors is an integer number (7500402).

Almost surely, 2^189137835 is an apocalyptic number.

189137835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

189137835 is a deficient number, since it is larger than the sum of its proper divisors (170881461).

189137835 is an equidigital number, since it uses as much as digits as its factorization.

189137835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9194 (or 9182 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 189137835 is about 13752.7391817049. The cubic root of 189137835 is about 574.0188282703.

The spelling of 189137835 in words is "one hundred eighty-nine million, one hundred thirty-seven thousand, eight hundred thirty-five".