156830228 has 12 divisors (see below), whose sum is σ = 275475060. Its totient is φ = 78123072.

The previous prime is 156830197. The next prime is 156830251. The reversal of 156830228 is 822038651.

It can be written as a sum of positive squares in 2 ways, for example, as 34904464 + 121925764 = 5908^2 + 11042^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71801 + ... + 73952.

It is an arithmetic number, because the mean of its divisors is an integer number (22956255).

Almost surely, 2^156830228 is an apocalyptic number.

It is an amenable number.

156830228 is a deficient number, since it is larger than the sum of its proper divisors (118644832).

156830228 is a wasteful number, since it uses less digits than its factorization.

156830228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146026 (or 146024 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 156830228 is about 12523.1876133834. The cubic root of 156830228 is about 539.2745493947.

Adding to 156830228 its reverse (822038651), we get a palindrome (978868879).

The spelling of 156830228 in words is "one hundred fifty-six million, eight hundred thirty thousand, two hundred twenty-eight".