151500 has 48 divisors (see below), whose sum is σ = 445536. Its totient is φ = 40000.

The previous prime is 151499. The next prime is 151507. The reversal of 151500 is 5151.

It is a hoax number, since the sum of its digits (12) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (151507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1450 + ... + 1550.

It is an arithmetic number, because the mean of its divisors is an integer number (9282).

2¹⁵¹⁵⁰⁰ is an apocalyptic number.

151500 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 151500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222768).

151500 is an abundant number, since it is smaller than the sum of its proper divisors (294036).

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

151500 is a wasteful number, since it uses less digits than its factorization.

151500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 12.

The square root of 151500 is about 389.2300091206. The cubic root of 151500 is about 53.3094511129.

Adding to 151500 its product of nonzero digits (25), we get a triangular number (151525 = T₅₅₀).

Adding to 151500 its reverse (5151), we get a palindrome (156651).

It can be divided in two parts, 15 and 1500, that multiplied together give a square (22500 = 150²).

The spelling of 151500 in words is "one hundred fifty-one thousand, five hundred".