1310143987 has 2 divisors, whose sum is σ = 1310143988. Its totient is φ = 1310143986.

The previous prime is 1310143973. The next prime is 1310144039. The reversal of 1310143987 is 7893410131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1310143987 - 2⁷ = 1310143859 is a prime.

It is not a weakly prime, because it can be changed into another prime (1310143907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655071993 + 655071994.

It is an arithmetic number, because the mean of its divisors is an integer number (655071994).

Almost surely, 2^1310143987 is an apocalyptic number.

1310143987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310143987 is an equidigital number, since it uses as much as digits as its factorization.

1310143987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1310143987 is about 36195.9111917355. The cubic root of 1310143987 is about 1094.2242685202.

The spelling of 1310143987 in words is "one billion, three hundred ten million, one hundred forty-three thousand, nine hundred eighty-seven".