1253799 has 20 divisors (see below), whose sum is σ = 1957296. Its totient is φ = 798336.

The previous prime is 1253783. The next prime is 1253803. The reversal of 1253799 is 9973521.

It is not a de Polignac number, because 1253799 - 2⁴ = 1253783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253729) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1527 + ... + 2199.

2^1253799 is an apocalyptic number.

1253799 is a deficient number, since it is larger than the sum of its proper divisors (703497).

1253799 is an equidigital number, since it uses as much as digits as its factorization.

1253799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708 (or 699 counting only the distinct ones).

The product of its digits is 17010, while the sum is 36.

The square root of 1253799 is about 1119.7316642839. The cubic root of 1253799 is about 107.8307534311.

The spelling of 1253799 in words is "one million, two hundred fifty-three thousand, seven hundred ninety-nine".