150500991 has 8 divisors (see below), whose sum is σ = 201530160. Its totient is φ = 99902912.

The previous prime is 150500953. The next prime is 150501061. The reversal of 150500991 is 199005051.

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

It is a cyclic number.

It is not a de Polignac number, because 150500991 - 2⁷ = 150500863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150500921) 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, 106956 + ... + 108353.

It is an arithmetic number, because the mean of its divisors is an integer number (25191270).

Almost surely, 2^150500991 is an apocalyptic number.

150500991 is a deficient number, since it is larger than the sum of its proper divisors (51029169).

150500991 is a wasteful number, since it uses less digits than its factorization.

150500991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215545.

The product of its (nonzero) digits is 2025, while the sum is 30.

The square root of 150500991 is about 12267.8845364635. The cubic root of 150500991 is about 531.9201632226.

The spelling of 150500991 in words is "one hundred fifty million, five hundred thousand, nine hundred ninety-one".