1240048169 has 2 divisors, whose sum is σ = 1240048170. Its totient is φ = 1240048168.

The previous prime is 1240048087. The next prime is 1240048171. The reversal of 1240048169 is 9618400421.

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., 1052029225 + 188018944 = 32435^2 + 13712^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1240048169 is a prime.

It is a super-2 number, since 2×1240048169² = 3075438922880505122, which contains 22 as substring.

Together with 1240048171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1240048189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620024084 + 620024085.

It is an arithmetic number, because the mean of its divisors is an integer number (620024085).

Almost surely, 2^1240048169 is an apocalyptic number.

It is an amenable number.

1240048169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240048169 is an equidigital number, since it uses as much as digits as its factorization.

1240048169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 1240048169 is about 35214.3176705158. The cubic root of 1240048169 is about 1074.3509820299.

The spelling of 1240048169 in words is "one billion, two hundred forty million, forty-eight thousand, one hundred sixty-nine".