230156737 has 4 divisors (see below), whose sum is σ = 230191236. Its totient is φ = 230122240.

The previous prime is 230156723. The next prime is 230156743. The reversal of 230156737 is 737651032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 122744241 + 107412496 = 11079^2 + 10364^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230156737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230156137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3688 + ... + 21769.

It is an arithmetic number, because the mean of its divisors is an integer number (57547809).

Almost surely, 2^230156737 is an apocalyptic number.

It is an amenable number.

230156737 is a deficient number, since it is larger than the sum of its proper divisors (34499).

230156737 is an equidigital number, since it uses as much as digits as its factorization.

230156737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34498.

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 230156737 is about 15170.9174739038. The cubic root of 230156737 is about 612.8317121448.

The spelling of 230156737 in words is "two hundred thirty million, one hundred fifty-six thousand, seven hundred thirty-seven".