1285713 has 48 divisors (see below), whose sum is σ = 2323776. Its totient is φ = 699840.

The previous prime is 1285703. The next prime is 1285717. The reversal of 1285713 is 3175821.

It is not a de Polignac number, because 1285713 - 2⁶ = 1285649 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1285717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34731 + ... + 34767.

It is an arithmetic number, because the mean of its divisors is an integer number (48412).

2^1285713 is an apocalyptic number.

1285713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1285713 is a deficient number, since it is larger than the sum of its proper divisors (1038063).

1285713 is a wasteful number, since it uses less digits than its factorization.

1285713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76 (or 64 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 1285713 is about 1133.8928520808. The cubic root of 1285713 is about 108.7380010543.

The spelling of 1285713 in words is "one million, two hundred eighty-five thousand, seven hundred thirteen".