156133230 has 128 divisors (see below), whose sum is σ = 425502720. Its totient is φ = 36341760.

The previous prime is 156133217. The next prime is 156133231. The reversal of 156133230 is 32331651.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 156133230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156133231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1381654 + ... + 1381766.

It is an arithmetic number, because the mean of its divisors is an integer number (3324240).

Almost surely, 2^156133230 is an apocalyptic number.

156133230 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 156133230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212751360).

156133230 is an abundant number, since it is smaller than the sum of its proper divisors (269369490).

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

156133230 is a wasteful number, since it uses less digits than its factorization.

156133230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 156133230 is about 12495.3283270189. The cubic root of 156133230 is about 538.4744666231.

Adding to 156133230 its reverse (32331651), we get a palindrome (188464881).

It can be divided in two parts, 156 and 133230, that added together give a triangular number (133386 = T₅₁₆).

The spelling of 156133230 in words is "one hundred fifty-six million, one hundred thirty-three thousand, two hundred thirty".