150399891 has 6 divisors (see below), whose sum is σ = 217244300. Its totient is φ = 100266588.

The previous prime is 150399883. The next prime is 150399947. The reversal of 150399891 is 198993051.

It is not a de Polignac number, because 150399891 - 2³ = 150399883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150399841) 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 5 ways as a sum of consecutive naturals, for example, 8355541 + ... + 8355558.

Almost surely, 2^150399891 is an apocalyptic number.

150399891 is a deficient number, since it is larger than the sum of its proper divisors (66844409).

150399891 is a wasteful number, since it uses less digits than its factorization.

150399891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16711105 (or 16711102 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 45.

The square root of 150399891 is about 12263.7633294189. The cubic root of 150399891 is about 531.8010296223.

The spelling of 150399891 in words is "one hundred fifty million, three hundred ninety-nine thousand, eight hundred ninety-one".