150918189 has 8 divisors (see below), whose sum is σ = 205021152. Its totient is φ = 98713680.

The previous prime is 150918181. The next prime is 150918211. The reversal of 150918189 is 981819051.

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

It is not a de Polignac number, because 150918189 - 2³ = 150918181 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 150918189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150918181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474427 + ... + 474744.

It is an arithmetic number, because the mean of its divisors is an integer number (25627644).

Almost surely, 2^150918189 is an apocalyptic number.

It is an amenable number.

150918189 is a deficient number, since it is larger than the sum of its proper divisors (54102963).

150918189 is an equidigital number, since it uses as much as digits as its factorization.

150918189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949227.

The product of its (nonzero) digits is 25920, while the sum is 42.

The square root of 150918189 is about 12284.8764340550. The cubic root of 150918189 is about 532.4112148917.

The spelling of 150918189 in words is "one hundred fifty million, nine hundred eighteen thousand, one hundred eighty-nine".