1238780252159 has 2 divisors, whose sum is σ = 1238780252160. Its totient is φ = 1238780252158.

The previous prime is 1238780252123. The next prime is 1238780252173. The reversal of 1238780252159 is 9512520878321.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (9512520878321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1238780252159 - 2²⁰ = 1238779203583 is a prime.

It is a super-2 number, since 2×1238780252159² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1238780252159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1238780552159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619390126079 + 619390126080.

It is an arithmetic number, because the mean of its divisors is an integer number (619390126080).

Almost surely, 2^{1238780252159} is an apocalyptic number.

1238780252159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1238780252159 is an equidigital number, since it uses as much as digits as its factorization.

1238780252159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 1238780252159 in words is "one trillion, two hundred thirty-eight billion, seven hundred eighty million, two hundred fifty-two thousand, one hundred fifty-nine".