156230321 has 8 divisors (see below), whose sum is σ = 170378880. Its totient is φ = 142386192.

The previous prime is 156230299. The next prime is 156230339. The reversal of 156230321 is 123032651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-156230321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156230351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75035 + ... + 77088.

It is an arithmetic number, because the mean of its divisors is an integer number (21297360).

Almost surely, 2^156230321 is an apocalyptic number.

It is an amenable number.

156230321 is a deficient number, since it is larger than the sum of its proper divisors (14148559).

156230321 is a wasteful number, since it uses less digits than its factorization.

156230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152215.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 156230321 is about 12499.2128152136. The cubic root of 156230321 is about 538.5860597611.

Adding to 156230321 its reverse (123032651), we get a palindrome (279262972).

The spelling of 156230321 in words is "one hundred fifty-six million, two hundred thirty thousand, three hundred twenty-one".