244532135137 has 2 divisors, whose sum is σ = 244532135138. Its totient is φ = 244532135136.

The previous prime is 244532135123. The next prime is 244532135153. The reversal of 244532135137 is 731531235442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162401746081 + 82130389056 = 402991^2 + 286584^2 .

It is a cyclic number.

It is not a de Polignac number, because 244532135137 - 2²³ = 244523746529 is a prime.

It is a super-2 number, since 2×244532135137² (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 244532135137.

It is not a weakly prime, because it can be changed into another prime (244532435137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122266067568 + 122266067569.

It is an arithmetic number, because the mean of its divisors is an integer number (122266067569).

Almost surely, 2^244532135137 is an apocalyptic number.

It is an amenable number.

244532135137 is a deficient number, since it is larger than the sum of its proper divisors (1).

244532135137 is an equidigital number, since it uses as much as digits as its factorization.

244532135137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 40.

The spelling of 244532135137 in words is "two hundred forty-four billion, five hundred thirty-two million, one hundred thirty-five thousand, one hundred thirty-seven".