1285213713 has 64 divisors (see below), whose sum is σ = 2126530560. Its totient is φ = 674085888.

The previous prime is 1285213693. The next prime is 1285213729. The reversal of 1285213713 is 3173125821.

It is a happy number.

It is not a de Polignac number, because 1285213713 - 2⁵ = 1285213681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1285213513) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2967945 + ... + 2968377.

It is an arithmetic number, because the mean of its divisors is an integer number (33227040).

Almost surely, 2^1285213713 is an apocalyptic number.

It is an amenable number.

1285213713 is a deficient number, since it is larger than the sum of its proper divisors (841316847).

1285213713 is a wasteful number, since it uses less digits than its factorization.

1285213713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678.

The product of its digits is 10080, while the sum is 33.

The square root of 1285213713 is about 35849.8774474893. The cubic root of 1285213713 is about 1087.2392365140.

It can be divided in two parts, 12852 and 13713, that added together give a triangular number (26565 = T₂₃₀).

The spelling of 1285213713 in words is "one billion, two hundred eighty-five million, two hundred thirteen thousand, seven hundred thirteen".