1246945 has 16 divisors (see below), whose sum is σ = 1785600. Its totient is φ = 817344.

The previous prime is 1246943. The next prime is 1246961. The reversal of 1246945 is 5496421.

It is a cyclic number.

It is not a de Polignac number, because 1246945 - 2¹ = 1246943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1246943) 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, 31 + ... + 1579.

It is an arithmetic number, because the mean of its divisors is an integer number (111600).

2^1246945 is an apocalyptic number.

It is an amenable number.

1246945 is a deficient number, since it is larger than the sum of its proper divisors (538655).

1246945 is a wasteful number, since it uses less digits than its factorization.

1246945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584.

The product of its digits is 8640, while the sum is 31.

The square root of 1246945 is about 1116.6669154229. Note that the first 3 decimals coincide. The cubic root of 1246945 is about 107.6339056050.

The spelling of 1246945 in words is "one million, two hundred forty-six thousand, nine hundred forty-five".