1255122641519 has 2 divisors, whose sum is σ = 1255122641520. Its totient is φ = 1255122641518.

The previous prime is 1255122641497. The next prime is 1255122641533. The reversal of 1255122641519 is 9151462215521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1255122641519 - 2³² = 1250827674223 is a prime.

It is a super-2 number, since 2×1255122641519² (a number of 25 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 1255122641519.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255122641569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627561320759 + 627561320760.

It is an arithmetic number, because the mean of its divisors is an integer number (627561320760).

Almost surely, 2^{1255122641519} is an apocalyptic number.

1255122641519 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255122641519 is an equidigital number, since it uses as much as digits as its factorization.

1255122641519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216000, while the sum is 44.

The spelling of 1255122641519 in words is "one trillion, two hundred fifty-five billion, one hundred twenty-two million, six hundred forty-one thousand, five hundred nineteen".