1287560807139 has 8 divisors (see below), whose sum is σ = 1717233674832. Its totient is φ = 858130905440.

The previous prime is 1287560807101. The next prime is 1287560807189. The reversal of 1287560807139 is 9317080657821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1287560807139 - 2¹⁹ = 1287560282851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1287560807189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60729132 + ... + 60750329.

It is an arithmetic number, because the mean of its divisors is an integer number (214654209354).

Almost surely, 2^{1287560807139} is an apocalyptic number.

1287560807139 is a deficient number, since it is larger than the sum of its proper divisors (429672867693).

1287560807139 is a wasteful number, since it uses less digits than its factorization.

1287560807139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121482997.

The product of its (nonzero) digits is 5080320, while the sum is 57.

The spelling of 1287560807139 in words is "one trillion, two hundred eighty-seven billion, five hundred sixty million, eight hundred seven thousand, one hundred thirty-nine".