1244895 has 16 divisors (see below), whose sum is σ = 2008800. Its totient is φ = 658304.

The previous prime is 1244879. The next prime is 1244909. The reversal of 1244895 is 5984421.

It is a cyclic number.

It is not a de Polignac number, because 1244895 - 2⁴ = 1244879 is a prime.

It is a super-2 number, since 2×1244895² = 3099527122050, which contains 22 as substring.

1244895 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1957 + ... + 2513.

It is an arithmetic number, because the mean of its divisors is an integer number (125550).

2^1244895 is an apocalyptic number.

1244895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1244895 is a deficient number, since it is larger than the sum of its proper divisors (763905).

1244895 is a wasteful number, since it uses less digits than its factorization.

1244895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714.

The product of its digits is 11520, while the sum is 33.

The square root of 1244895 is about 1115.7486276039. The cubic root of 1244895 is about 107.5748892265.

The spelling of 1244895 in words is "one million, two hundred forty-four thousand, eight hundred ninety-five".