244515013 has 4 divisors (see below), whose sum is σ = 246758380. Its totient is φ = 242271648.

The previous prime is 244514999. The next prime is 244515031. The reversal of 244515013 is 310515442.

It is a happy number.

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 131262849 + 113252164 = 11457^2 + 10642^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244515013 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 (244515043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1121520 + ... + 1121737.

It is an arithmetic number, because the mean of its divisors is an integer number (61689595).

Almost surely, 2^244515013 is an apocalyptic number.

It is an amenable number.

244515013 is a deficient number, since it is larger than the sum of its proper divisors (2243367).

244515013 is a wasteful number, since it uses less digits than its factorization.

244515013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243366.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 244515013 is about 15636.9758265465. The cubic root of 244515013 is about 625.3193145933.

The spelling of 244515013 in words is "two hundred forty-four million, five hundred fifteen thousand, thirteen".