1285009714 has 4 divisors (see below), whose sum is σ = 1927514574. Its totient is φ = 642504856.

The previous prime is 1285009699. The next prime is 1285009777. The reversal of 1285009714 is 4179005821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 806844025 + 478165689 = 28405^2 + 21867^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 321252427 + ... + 321252430.

Almost surely, 2^1285009714 is an apocalyptic number.

1285009714 is a deficient number, since it is larger than the sum of its proper divisors (642504860).

1285009714 is an equidigital number, since it uses as much as digits as its factorization.

1285009714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642504859.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 1285009714 is about 35847.0321505142. The cubic root of 1285009714 is about 1087.1817084804.

The spelling of 1285009714 in words is "one billion, two hundred eighty-five million, nine thousand, seven hundred fourteen".