1287052086 has 16 divisors (see below), whose sum is σ = 2574558000. Its totient is φ = 428941728.

The previous prime is 1287052073. The next prime is 1287052093. The reversal of 1287052086 is 6802507821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26260 + ... + 57128.

It is an arithmetic number, because the mean of its divisors is an integer number (160909875).

Almost surely, 2^1287052086 is an apocalyptic number.

1287052086 is an abundant number, since it is smaller than the sum of its proper divisors (1287505914).

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

1287052086 is a wasteful number, since it uses less digits than its factorization.

1287052086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37823.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 1287052086 is about 35875.5081636484. The cubic root of 1287052086 is about 1087.7573861382.

The spelling of 1287052086 in words is "one billion, two hundred eighty-seven million, fifty-two thousand, eighty-six".