1285167 has 16 divisors (see below), whose sum is σ = 1906688. Its totient is φ = 764640.

The previous prime is 1285159. The next prime is 1285169. The reversal of 1285167 is 7615821.

It is not a de Polignac number, because 1285167 - 2³ = 1285159 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 678 + ... + 1740.

It is an arithmetic number, because the mean of its divisors is an integer number (119168).

2^1285167 is an apocalyptic number.

1285167 is a deficient number, since it is larger than the sum of its proper divisors (621521).

1285167 is a wasteful number, since it uses less digits than its factorization.

1285167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110.

The product of its digits is 3360, while the sum is 30.

The square root of 1285167 is about 1133.6520630246. The cubic root of 1285167 is about 108.7226063913.

The spelling of 1285167 in words is "one million, two hundred eighty-five thousand, one hundred sixty-seven".