1244997 has 16 divisors (see below), whose sum is σ = 1986880. Its totient is φ = 765936.

The previous prime is 1244993. The next prime is 1245001. The reversal of 1244997 is 7994421.

It is an interprime number because it is at equal distance from previous prime (1244993) and next prime (1245001).

It is not a de Polignac number, because 1244997 - 2² = 1244993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244993) 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 15 ways as a sum of consecutive naturals, for example, 1423 + ... + 2124.

It is an arithmetic number, because the mean of its divisors is an integer number (124180).

2^1244997 is an apocalyptic number.

It is an amenable number.

1244997 is a deficient number, since it is larger than the sum of its proper divisors (741883).

1244997 is a wasteful number, since it uses less digits than its factorization.

1244997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569 (or 3563 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 1244997 is about 1115.7943358881. The cubic root of 1244997 is about 107.5778271822.

The spelling of 1244997 in words is "one million, two hundred forty-four thousand, nine hundred ninety-seven".