150000 has 60 divisors (see below), whose sum is σ = 484344. Its totient is φ = 40000.

The previous prime is 149993. The next prime is 150001. The reversal of 150000 is 51.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150001) by changing a digit.

150000 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29998 + ... + 30002.

2¹⁵⁰⁰⁰⁰ is an apocalyptic number.

150000 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 150000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242172).

150000 is an abundant number, since it is smaller than the sum of its proper divisors (334344).

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

150000 is an frugal number, since it uses more digits than its factorization.

150000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 5, while the sum is 6.

The square root of 150000 is about 387.2983346207. The cubic root of 150000 is about 53.1329284591.

Adding to 150000 its reverse (51), we get a palindrome (150051).

The spelling of 150000 in words is "one hundred fifty thousand".