244321613 has 2 divisors, whose sum is σ = 244321614. Its totient is φ = 244321612.

The previous prime is 244321601. The next prime is 244321631. The reversal of 244321613 is 316123442.

Together with next prime (244321631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145974724 + 98346889 = 12082^2 + 9917^2 .

It is a cyclic number.

It is not a de Polignac number, because 244321613 - 2¹⁰ = 244320589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244371613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122160806 + 122160807.

It is an arithmetic number, because the mean of its divisors is an integer number (122160807).

Almost surely, 2^244321613 is an apocalyptic number.

It is an amenable number.

244321613 is a deficient number, since it is larger than the sum of its proper divisors (1).

244321613 is an equidigital number, since it uses as much as digits as its factorization.

244321613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 26.

The square root of 244321613 is about 15630.7905430276. The cubic root of 244321613 is about 625.1544049448.

The spelling of 244321613 in words is "two hundred forty-four million, three hundred twenty-one thousand, six hundred thirteen".