244532136181 has 2 divisors, whose sum is σ = 244532136182. Its totient is φ = 244532136180.

The previous prime is 244532136179. The next prime is 244532136193. The reversal of 244532136181 is 181631235442.

244532136181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157185289156 + 87346847025 = 396466^2 + 295545^2 .

It is a cyclic number.

It is not a de Polignac number, because 244532136181 - 2¹ = 244532136179 is a prime.

It is a super-2 number, since 2×244532136181² (a number of 24 digits) contains 22 as substring.

Together with 244532136179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244532136481) 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 as a sum of consecutive naturals, namely, 122266068090 + 122266068091.

It is an arithmetic number, because the mean of its divisors is an integer number (122266068091).

Almost surely, 2^244532136181 is an apocalyptic number.

It is an amenable number.

244532136181 is a deficient number, since it is larger than the sum of its proper divisors (1).

244532136181 is an equidigital number, since it uses as much as digits as its factorization.

244532136181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 40.

The spelling of 244532136181 in words is "two hundred forty-four billion, five hundred thirty-two million, one hundred thirty-six thousand, one hundred eighty-one".