1272485 has 8 divisors (see below), whose sum is σ = 1537656. Its totient is φ = 1010880.

The previous prime is 1272461. The next prime is 1272539. The reversal of 1272485 is 5842721.

It can be written as a sum of positive squares in 4 ways, for example, as 155236 + 1117249 = 394^2 + 1057^2 .

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

It is not a de Polignac number, because 1272485 - 2⁶ = 1272421 is a prime.

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, 26 + ... + 1595.

It is an arithmetic number, because the mean of its divisors is an integer number (192207).

2^1272485 is an apocalyptic number.

It is an amenable number.

1272485 is a deficient number, since it is larger than the sum of its proper divisors (265171).

1272485 is a wasteful number, since it uses less digits than its factorization.

1272485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783.

The product of its digits is 4480, while the sum is 29.

The square root of 1272485 is about 1128.0447686151. The cubic root of 1272485 is about 108.3637994524.

The spelling of 1272485 in words is "one million, two hundred seventy-two thousand, four hundred eighty-five".