1215395240239 has 2 divisors, whose sum is σ = 1215395240240. Its totient is φ = 1215395240238.

The previous prime is 1215395240231. The next prime is 1215395240261. The reversal of 1215395240239 is 9320425935121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1215395240239 - 2³ = 1215395240231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1215395240231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607697620119 + 607697620120.

It is an arithmetic number, because the mean of its divisors is an integer number (607697620120).

Almost surely, 2^{1215395240239} is an apocalyptic number.

1215395240239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1215395240239 is an equidigital number, since it uses as much as digits as its factorization.

1215395240239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 46.

The spelling of 1215395240239 in words is "one trillion, two hundred fifteen billion, three hundred ninety-five million, two hundred forty thousand, two hundred thirty-nine".