1243485 has 32 divisors (see below), whose sum is σ = 2261760. Its totient is φ = 648000.

The previous prime is 1243483. The next prime is 1243511. The reversal of 1243485 is 5843421.

It is not a de Polignac number, because 1243485 - 2¹ = 1243483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8160 + ... + 8310.

It is an arithmetic number, because the mean of its divisors is an integer number (70680).

2^1243485 is an apocalyptic number.

1243485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1243485 is a deficient number, since it is larger than the sum of its proper divisors (1018275).

1243485 is a wasteful number, since it uses less digits than its factorization.

1243485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 220 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1243485 is about 1115.1165858331. The cubic root of 1243485 is about 107.5342598573.

It can be divided in two parts, 1243 and 485, that added together give a cube (1728 = 12³).

The spelling of 1243485 in words is "one million, two hundred forty-three thousand, four hundred eighty-five".