230145028 has 6 divisors (see below), whose sum is σ = 402753806. Its totient is φ = 115072512.

The previous prime is 230145007. The next prime is 230145037. The reversal of 230145028 is 820541032.

It can be written as a sum of positive squares in only one way, i.e., 167133184 + 63011844 = 12928^2 + 7938^2 .

It is a junction number, because it is equal to n+sod(n) for n = 230144993 and 230145011.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28768125 + ... + 28768132.

Almost surely, 2^230145028 is an apocalyptic number.

It is an amenable number.

230145028 is a deficient number, since it is larger than the sum of its proper divisors (172608778).

230145028 is a wasteful number, since it uses less digits than its factorization.

230145028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57536261 (or 57536259 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 230145028 is about 15170.5315661647. The cubic root of 230145028 is about 612.8213195629.

The spelling of 230145028 in words is "two hundred thirty million, one hundred forty-five thousand, twenty-eight".