151504 has 20 divisors (see below), whose sum is σ = 311364. Its totient is φ = 71168.

The previous prime is 151499. The next prime is 151507. The reversal of 151504 is 405151.

It is a happy number.

151504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 61504 + 90000 = 248^2 + 300^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

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

151504 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 3 ways as a sum of consecutive naturals, for example, 7 + ... + 550.

2¹⁵¹⁵⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155682).

151504 is an abundant number, since it is smaller than the sum of its proper divisors (159860).

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

151504 is a wasteful number, since it uses less digits than its factorization.

151504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 151504 is about 389.2351474366. The cubic root of 151504 is about 53.3099202789.

Adding to 151504 its reverse (405151), we get a palindrome (556655).

The spelling of 151504 in words is "one hundred fifty-one thousand, five hundred four".