244242130169 has 2 divisors, whose sum is σ = 244242130170. Its totient is φ = 244242130168.

The previous prime is 244242130129. The next prime is 244242130189. The reversal of 244242130169 is 961031242442.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240492160000 + 3749970169 = 490400^2 + 61237^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244242130169 is a prime.

It is a super-2 number, since 2×244242130169² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (244242130129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122121065084 + 122121065085.

It is an arithmetic number, because the mean of its divisors is an integer number (122121065085).

Almost surely, 2^244242130169 is an apocalyptic number.

It is an amenable number.

244242130169 is a deficient number, since it is larger than the sum of its proper divisors (1).

244242130169 is an equidigital number, since it uses as much as digits as its factorization.

244242130169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 244242130169 in words is "two hundred forty-four billion, two hundred forty-two million, one hundred thirty thousand, one hundred sixty-nine".