150991122 has 16 divisors (see below), whose sum is σ = 302956992. Its totient is φ = 50167920.

The previous prime is 150991109. The next prime is 150991123. The reversal of 150991122 is 221199051.

It is a self number, because there is not a number n which added to its sum of digits gives 150991122.

It is not an unprimeable number, because it can be changed into a prime (150991123) 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, 38593 + ... + 42324.

It is an arithmetic number, because the mean of its divisors is an integer number (18934812).

Almost surely, 2^150991122 is an apocalyptic number.

150991122 is an abundant number, since it is smaller than the sum of its proper divisors (151965870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

150991122 is a wasteful number, since it uses less digits than its factorization.

150991122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81233.

The product of its (nonzero) digits is 1620, while the sum is 30.

The square root of 150991122 is about 12287.8444814377. The cubic root of 150991122 is about 532.4969657523.

The spelling of 150991122 in words is "one hundred fifty million, nine hundred ninety-one thousand, one hundred twenty-two".