245652643 has 4 divisors (see below), whose sum is σ = 246395128. Its totient is φ = 244910160.

The previous prime is 245652613. The next prime is 245652647. The reversal of 245652643 is 346256542.

245652643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 245652643 - 2⁵ = 245652611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245652647) 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, 370746 + ... + 371407.

It is an arithmetic number, because the mean of its divisors is an integer number (61598782).

Almost surely, 2^245652643 is an apocalyptic number.

245652643 is a deficient number, since it is larger than the sum of its proper divisors (742485).

245652643 is an equidigital number, since it uses as much as digits as its factorization.

245652643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742484.

The product of its digits is 172800, while the sum is 37.

The square root of 245652643 is about 15673.3098929358. The cubic root of 245652643 is about 626.2876008727.

The spelling of 245652643 in words is "two hundred forty-five million, six hundred fifty-two thousand, six hundred forty-three".