1244625 has 16 divisors (see below), whose sum is σ = 2071680. Its totient is φ = 663600.

The previous prime is 1244611. The next prime is 1244627. The reversal of 1244625 is 5264421.

It is not a de Polignac number, because 1244625 - 2⁴ = 1244609 is a prime.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1244595 and 1244604.

It is not an unprimeable number, because it can be changed into a prime (1244627) 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, 1285 + ... + 2034.

It is an arithmetic number, because the mean of its divisors is an integer number (129480).

2^1244625 is an apocalyptic number.

1244625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1244625 is a deficient number, since it is larger than the sum of its proper divisors (827055).

1244625 is an equidigital number, since it uses as much as digits as its factorization.

1244625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3337 (or 3327 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 1244625 is about 1115.6276260473. The cubic root of 1244625 is about 107.5671115103.

The spelling of 1244625 in words is "one million, two hundred forty-four thousand, six hundred twenty-five".