1340102987 has 2 divisors, whose sum is σ = 1340102988. Its totient is φ = 1340102986.

The previous prime is 1340102971. The next prime is 1340103059. The reversal of 1340102987 is 7892010431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1340102987 - 2⁴ = 1340102971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1340102957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670051493 + 670051494.

It is an arithmetic number, because the mean of its divisors is an integer number (670051494).

Almost surely, 2^1340102987 is an apocalyptic number.

1340102987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340102987 is an equidigital number, since it uses as much as digits as its factorization.

1340102987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 1340102987 is about 36607.4171036417. The cubic root of 1340102987 is about 1102.5020146233.

The spelling of 1340102987 in words is "one billion, three hundred forty million, one hundred two thousand, nine hundred eighty-seven".