1285973 has 8 divisors (see below), whose sum is σ = 1430016. Its totient is φ = 1148400.

The previous prime is 1285969. The next prime is 1285981. The reversal of 1285973 is 3795821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1285973 - 2² = 1285969 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1193 + ... + 1998.

It is an arithmetic number, because the mean of its divisors is an integer number (178752).

2^1285973 is an apocalyptic number.

1285973 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1285973 is a deficient number, since it is larger than the sum of its proper divisors (144043).

1285973 is a wasteful number, since it uses less digits than its factorization.

1285973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3235.

The product of its digits is 15120, while the sum is 35.

The square root of 1285973 is about 1134.0074955661. The cubic root of 1285973 is about 108.7453303143.

The spelling of 1285973 in words is "one million, two hundred eighty-five thousand, nine hundred seventy-three".