1267285 has 8 divisors (see below), whose sum is σ = 1529856. Its totient is φ = 1007760.

The previous prime is 1267237. The next prime is 1267291. The reversal of 1267285 is 5827621.

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

It is not a de Polignac number, because 1267285 - 2⁷ = 1267157 is a prime.

It is a super-2 number, since 2×1267285² = 3212022542450, which contains 22 as substring.

It is a Duffinian number.

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, 292 + ... + 1618.

It is an arithmetic number, because the mean of its divisors is an integer number (191232).

2^1267285 is an apocalyptic number.

It is an amenable number.

1267285 is a deficient number, since it is larger than the sum of its proper divisors (262571).

1267285 is a wasteful number, since it uses less digits than its factorization.

1267285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523.

The product of its digits is 6720, while the sum is 31.

The square root of 1267285 is about 1125.7375360181. The cubic root of 1267285 is about 108.2159886536.

The spelling of 1267285 in words is "one million, two hundred sixty-seven thousand, two hundred eighty-five".