189149315 has 8 divisors (see below), whose sum is σ = 231262128. Its totient is φ = 148464160.

The previous prime is 189149287. The next prime is 189149329. The reversal of 189149315 is 513941981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 189149315 - 2⁶ = 189149251 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356621 + ... + 357150.

It is an arithmetic number, because the mean of its divisors is an integer number (28907766).

Almost surely, 2^189149315 is an apocalyptic number.

189149315 is a deficient number, since it is larger than the sum of its proper divisors (42112813).

189149315 is an equidigital number, since it uses as much as digits as its factorization.

189149315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713829.

The product of its digits is 38880, while the sum is 41.

The square root of 189149315 is about 13753.1565467714. The cubic root of 189149315 is about 574.0304416753.

The spelling of 189149315 in words is "one hundred eighty-nine million, one hundred forty-nine thousand, three hundred fifteen".