1287420714 has 24 divisors (see below), whose sum is σ = 2795870532. Its totient is φ = 428146560.

The previous prime is 1287420707. The next prime is 1287420733. The reversal of 1287420714 is 4170247821.

It can be written as a sum of positive squares in 2 ways, for example, as 1277705025 + 9715689 = 35745^2 + 3117^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74797 + ... + 90384.

Almost surely, 2^1287420714 is an apocalyptic number.

1287420714 is an abundant number, since it is smaller than the sum of its proper divisors (1508449818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1287420714 is a wasteful number, since it uses less digits than its factorization.

1287420714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165622 (or 165619 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 1287420714 is about 35880.6453955332. The cubic root of 1287420714 is about 1087.8612253841.

The spelling of 1287420714 in words is "one billion, two hundred eighty-seven million, four hundred twenty thousand, seven hundred fourteen".