230172193 has 4 divisors (see below), whose sum is σ = 231852420. Its totient is φ = 228491968.

The previous prime is 230172181. The next prime is 230172199. The reversal of 230172193 is 391271032.

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 42810849 + 187361344 = 6543^2 + 13688^2 .

It is a cyclic number.

It is not a de Polignac number, because 230172193 - 2²¹ = 228075041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230172199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 839908 + ... + 840181.

It is an arithmetic number, because the mean of its divisors is an integer number (57963105).

Almost surely, 2^230172193 is an apocalyptic number.

It is an amenable number.

230172193 is a deficient number, since it is larger than the sum of its proper divisors (1680227).

230172193 is a wasteful number, since it uses less digits than its factorization.

230172193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680226.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 230172193 is about 15171.4268610438. The cubic root of 230172193 is about 612.8454299197.

The spelling of 230172193 in words is "two hundred thirty million, one hundred seventy-two thousand, one hundred ninety-three".