150997500 has 120 divisors (see below), whose sum is σ = 489405840. Its totient is φ = 40248000.

The previous prime is 150997471. The next prime is 150997529. The reversal of 150997500 is 5799051.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (150997471) and next prime (150997529).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 66382 + ... + 68618.

It is an arithmetic number, because the mean of its divisors is an integer number (4078382).

Almost surely, 2^150997500 is an apocalyptic number.

150997500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 150997500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244702920).

150997500 is an abundant number, since it is smaller than the sum of its proper divisors (338408340).

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

150997500 is a wasteful number, since it uses less digits than its factorization.

150997500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270 (or 2247 counting only the distinct ones).

The product of its (nonzero) digits is 14175, while the sum is 36.

The square root of 150997500 is about 12288.1040034661. The cubic root of 150997500 is about 532.5044633627.

The spelling of 150997500 in words is "one hundred fifty million, nine hundred ninety-seven thousand, five hundred".