189235215 has 72 divisors (see below), whose sum is σ = 359704800. Its totient is φ = 91982592.

The previous prime is 189235183. The next prime is 189235261. The reversal of 189235215 is 512532981.

It is not a de Polignac number, because 189235215 - 2⁵ = 189235183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189235215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1133062 + ... + 1133228.

It is an arithmetic number, because the mean of its divisors is an integer number (4995900).

Almost surely, 2^189235215 is an apocalyptic number.

189235215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

189235215 is a deficient number, since it is larger than the sum of its proper divisors (170469585).

189235215 is a wasteful number, since it uses less digits than its factorization.

189235215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 337 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 189235215 is about 13756.2791117366. The cubic root of 189235215 is about 574.1173249795.

The spelling of 189235215 in words is "one hundred eighty-nine million, two hundred thirty-five thousand, two hundred fifteen".