1283485 has 8 divisors (see below), whose sum is σ = 1760256. Its totient is φ = 880080.

The previous prime is 1283479. The next prime is 1283509. The reversal of 1283485 is 5843821.

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

It is not a de Polignac number, because 1283485 - 2¹³ = 1275293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18301 + ... + 18370.

It is an arithmetic number, because the mean of its divisors is an integer number (220032).

2^1283485 is an apocalyptic number.

It is an amenable number.

1283485 is a deficient number, since it is larger than the sum of its proper divisors (476771).

1283485 is an equidigital number, since it uses as much as digits as its factorization.

1283485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36683.

The product of its digits is 7680, while the sum is 31.

The square root of 1283485 is about 1132.9099699447. The cubic root of 1283485 is about 108.6751543841.

It can be divided in two parts, 12 and 83485, that multiplied together give a triangular number (1001820 = T₁₄₁₅).

The spelling of 1283485 in words is "one million, two hundred eighty-three thousand, four hundred eighty-five".