244966613 has 4 divisors (see below), whose sum is σ = 247492140. Its totient is φ = 242441088.

The previous prime is 244966609. The next prime is 244966621. The reversal of 244966613 is 316669442.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 316669442 = 2 ⋅158334721.

It can be written as a sum of positive squares in 2 ways, for example, as 34774609 + 210192004 = 5897^2 + 14498^2 .

It is a cyclic number.

It is not a de Polignac number, because 244966613 - 2² = 244966609 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 (244966693) 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, 1262618 + ... + 1262811.

It is an arithmetic number, because the mean of its divisors is an integer number (61873035).

Almost surely, 2^244966613 is an apocalyptic number.

It is an amenable number.

244966613 is a deficient number, since it is larger than the sum of its proper divisors (2525527).

244966613 is an equidigital number, since it uses as much as digits as its factorization.

244966613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525526.

The product of its digits is 186624, while the sum is 41.

The square root of 244966613 is about 15651.4092975681. The cubic root of 244966613 is about 625.7040496980.

The spelling of 244966613 in words is "two hundred forty-four million, nine hundred sixty-six thousand, six hundred thirteen".