1272585 has 16 divisors (see below), whose sum is σ = 2084544. Its totient is φ = 662592.

The previous prime is 1272577. The next prime is 1272589. The reversal of 1272585 is 5852721.

It is not a de Polignac number, because 1272585 - 2³ = 1272577 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1272589) 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, 342 + ... + 1631.

It is an arithmetic number, because the mean of its divisors is an integer number (130284).

2^1272585 is an apocalyptic number.

1272585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1272585 is a deficient number, since it is larger than the sum of its proper divisors (811959).

1272585 is a wasteful number, since it uses less digits than its factorization.

1272585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024.

The product of its digits is 5600, while the sum is 30.

The square root of 1272585 is about 1128.0890922263. The cubic root of 1272585 is about 108.3666380179.

The spelling of 1272585 in words is "one million, two hundred seventy-two thousand, five hundred eighty-five".