150861189 has 4 divisors (see below), whose sum is σ = 201148256. Its totient is φ = 100574124.

The previous prime is 150861187. The next prime is 150861199. The reversal of 150861189 is 981168051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 150861189 - 2¹ = 150861187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150861187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25143529 + ... + 25143534.

It is an arithmetic number, because the mean of its divisors is an integer number (50287064).

Almost surely, 2^150861189 is an apocalyptic number.

It is an amenable number.

150861189 is a deficient number, since it is larger than the sum of its proper divisors (50287067).

150861189 is an equidigital number, since it uses as much as digits as its factorization.

150861189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50287066.

The product of its (nonzero) digits is 17280, while the sum is 39.

The square root of 150861189 is about 12282.5562893072. The cubic root of 150861189 is about 532.3441779961.

The spelling of 150861189 in words is "one hundred fifty million, eight hundred sixty-one thousand, one hundred eighty-nine".