150221889 has 6 divisors (see below), whose sum is σ = 216987186. Its totient is φ = 100147920.

The previous prime is 150221881. The next prime is 150221891. The reversal of 150221889 is 988122051.

It can be written as a sum of positive squares in only one way, i.e., 150185025 + 36864 = 12255^2 + 192^2 .

It is not a de Polignac number, because 150221889 - 2³ = 150221881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (150221881) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 8345652 + ... + 8345669.

It is an arithmetic number, because the mean of its divisors is an integer number (36164531).

Almost surely, 2^150221889 is an apocalyptic number.

It is an amenable number.

150221889 is a deficient number, since it is larger than the sum of its proper divisors (66765297).

150221889 is a wasteful number, since it uses less digits than its factorization.

150221889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16691327 (or 16691324 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 150221889 is about 12256.5039468847. The cubic root of 150221889 is about 531.5911468987.

The spelling of 150221889 in words is "one hundred fifty million, two hundred twenty-one thousand, eight hundred eighty-nine".