230015645 has 4 divisors (see below), whose sum is σ = 276018780. Its totient is φ = 184012512.

The previous prime is 230015633. The next prime is 230015651. The reversal of 230015645 is 546510032.

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 173870596 + 56145049 = 13186^2 + 7493^2 .

It is a cyclic number.

It is not a de Polignac number, because 230015645 - 2⁶ = 230015581 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23001560 + ... + 23001569.

It is an arithmetic number, because the mean of its divisors is an integer number (69004695).

Almost surely, 2^230015645 is an apocalyptic number.

It is an amenable number.

230015645 is a deficient number, since it is larger than the sum of its proper divisors (46003135).

230015645 is an equidigital number, since it uses as much as digits as its factorization.

230015645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46003134.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 230015645 is about 15166.2666797073. The cubic root of 230015645 is about 612.7064593459.

Adding to 230015645 its reverse (546510032), we get a palindrome (776525677).

The spelling of 230015645 in words is "two hundred thirty million, fifteen thousand, six hundred forty-five".