1249285 has 4 divisors (see below), whose sum is σ = 1499148. Its totient is φ = 999424.

The previous prime is 1249273. The next prime is 1249301. The reversal of 1249285 is 5829421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 682276 + 567009 = 826^2 + 753^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1249285 is a prime.

It is a super-2 number, since 2×1249285² = 3121426022450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124924 + ... + 124933.

It is an arithmetic number, because the mean of its divisors is an integer number (374787).

2^1249285 is an apocalyptic number.

It is an amenable number.

1249285 is a deficient number, since it is larger than the sum of its proper divisors (249863).

1249285 is an equidigital number, since it uses as much as digits as its factorization.

1249285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249862.

The product of its digits is 5760, while the sum is 31.

The square root of 1249285 is about 1117.7141852907. The cubic root of 1249285 is about 107.7011916402.

It can be divided in two parts, 124 and 9285, that added together give a square (9409 = 97²).

The spelling of 1249285 in words is "one million, two hundred forty-nine thousand, two hundred eighty-five".