245733613 has 4 divisors (see below), whose sum is σ = 252375100. Its totient is φ = 239092128.

The previous prime is 245733611. The next prime is 245733619. The reversal of 245733613 is 316337542.

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 89908324 + 155825289 = 9482^2 + 12483^2 .

It is a cyclic number.

It is not a de Polignac number, because 245733613 - 2¹ = 245733611 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 (245733611) 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, 3320688 + ... + 3320761.

It is an arithmetic number, because the mean of its divisors is an integer number (63093775).

Almost surely, 2^245733613 is an apocalyptic number.

It is an amenable number.

245733613 is a deficient number, since it is larger than the sum of its proper divisors (6641487).

245733613 is an equidigital number, since it uses as much as digits as its factorization.

245733613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6641486.

The product of its digits is 45360, while the sum is 34.

The square root of 245733613 is about 15675.8927337489. The cubic root of 245733613 is about 626.3564039000.

The spelling of 245733613 in words is "two hundred forty-five million, seven hundred thirty-three thousand, six hundred thirteen".