244155215273 has 2 divisors, whose sum is σ = 244155215274. Its totient is φ = 244155215272.

The previous prime is 244155215267. The next prime is 244155215341. The reversal of 244155215273 is 372512551442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204605142889 + 39550072384 = 452333^2 + 198872^2 .

It is a cyclic number.

It is not a de Polignac number, because 244155215273 - 2¹⁰ = 244155214249 is a prime.

It is a super-2 number, since 2×244155215273² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 244155215273.

It is not a weakly prime, because it can be changed into another prime (244155215573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122077607636 + 122077607637.

It is an arithmetic number, because the mean of its divisors is an integer number (122077607637).

Almost surely, 2^244155215273 is an apocalyptic number.

It is an amenable number.

244155215273 is a deficient number, since it is larger than the sum of its proper divisors (1).

244155215273 is an equidigital number, since it uses as much as digits as its factorization.

244155215273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336000, while the sum is 41.

The spelling of 244155215273 in words is "two hundred forty-four billion, one hundred fifty-five million, two hundred fifteen thousand, two hundred seventy-three".