244561631 has 4 divisors (see below), whose sum is σ = 244650264. Its totient is φ = 244473000.

The previous prime is 244561621. The next prime is 244561637. The reversal of 244561631 is 136165442.

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 244561631 - 2¹⁰ = 244560607 is a prime.

It is a super-2 number, since 2×244561631² = 119620782714760322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244561637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40040 + ... + 45741.

It is an arithmetic number, because the mean of its divisors is an integer number (61162566).

Almost surely, 2^244561631 is an apocalyptic number.

244561631 is a deficient number, since it is larger than the sum of its proper divisors (88633).

244561631 is an equidigital number, since it uses as much as digits as its factorization.

244561631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88632.

The product of its digits is 17280, while the sum is 32.

The square root of 244561631 is about 15638.4663890038. The cubic root of 244561631 is about 625.3590521443.

The spelling of 244561631 in words is "two hundred forty-four million, five hundred sixty-one thousand, six hundred thirty-one".