1258285 has 8 divisors (see below), whose sum is σ = 1725696. Its totient is φ = 862800.

The previous prime is 1258267. The next prime is 1258291. The reversal of 1258285 is 5828521.

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

It is not a de Polignac number, because 1258285 - 2¹⁵ = 1225517 is a prime.

It is a super-2 number, since 2×1258285² = 3166562282450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17941 + ... + 18010.

It is an arithmetic number, because the mean of its divisors is an integer number (215712).

2^1258285 is an apocalyptic number.

It is an amenable number.

1258285 is a deficient number, since it is larger than the sum of its proper divisors (467411).

1258285 is an equidigital number, since it uses as much as digits as its factorization.

1258285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35963.

The product of its digits is 6400, while the sum is 31.

The square root of 1258285 is about 1121.7330341931. The cubic root of 1258285 is about 107.9592038416.

The spelling of 1258285 in words is "one million, two hundred fifty-eight thousand, two hundred eighty-five".