156330 has 40 divisors (see below), whose sum is σ = 422532. Its totient is φ = 41472.

The previous prime is 156329. The next prime is 156347. The reversal of 156330 is 33651.

It can be written as a sum of positive squares in 2 ways, for example, as 149769 + 6561 = 387^2 + 81^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 714 + ... + 906.

2¹⁵⁶³³⁰ is an apocalyptic number.

156330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 156330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211266).

156330 is an abundant number, since it is smaller than the sum of its proper divisors (266202).

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

156330 is a wasteful number, since it uses less digits than its factorization.

156330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 156330 is about 395.3858874568. The cubic root of 156330 is about 53.8700579371.

Adding to 156330 its reverse (33651), we get a palindrome (189981).

The spelling of 156330 in words is "one hundred fifty-six thousand, three hundred thirty".