189149316 has 12 divisors (see below), whose sum is σ = 441348432. Its totient is φ = 63049768.

The previous prime is 189149287. The next prime is 189149329. The reversal of 189149316 is 613941981.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7881210 + ... + 7881233.

It is an arithmetic number, because the mean of its divisors is an integer number (36779036).

Almost surely, 2^189149316 is an apocalyptic number.

It is an amenable number.

189149316 is an abundant number, since it is smaller than the sum of its proper divisors (252199116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189149316 is a wasteful number, since it uses less digits than its factorization.

189149316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15762450 (or 15762448 counting only the distinct ones).

The product of its digits is 46656, while the sum is 42.

The square root of 189149316 is about 13753.1565831267. The cubic root of 189149316 is about 574.0304426869.

The spelling of 189149316 in words is "one hundred eighty-nine million, one hundred forty-nine thousand, three hundred sixteen".