230102639 has 4 divisors (see below), whose sum is σ = 247802856. Its totient is φ = 212402424.

The previous prime is 230102623. The next prime is 230102657. The reversal of 230102639 is 936201032.

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

It is not a de Polignac number, because 230102639 - 2⁴ = 230102623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230102659) 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, 8850089 + ... + 8850114.

It is an arithmetic number, because the mean of its divisors is an integer number (61950714).

Almost surely, 2^230102639 is an apocalyptic number.

230102639 is a deficient number, since it is larger than the sum of its proper divisors (17700217).

230102639 is a wasteful number, since it uses less digits than its factorization.

230102639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17700216.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 230102639 is about 15169.1344182850. The cubic root of 230102639 is about 612.7836933204.

The spelling of 230102639 in words is "two hundred thirty million, one hundred two thousand, six hundred thirty-nine".