1253043 has 16 divisors (see below), whose sum is σ = 2025600. Its totient is φ = 759240.

The previous prime is 1253027. The next prime is 1253047. The reversal of 1253043 is 3403521.

It is not a de Polignac number, because 1253043 - 2⁴ = 1253027 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1253047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1813 + ... + 2406.

It is an arithmetic number, because the mean of its divisors is an integer number (126600).

2^1253043 is an apocalyptic number.

1253043 is a deficient number, since it is larger than the sum of its proper divisors (772557).

1253043 is a wasteful number, since it uses less digits than its factorization.

1253043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4239 (or 4233 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 1253043 is about 1119.3940325015. The cubic root of 1253043 is about 107.8090762618.

Adding to 1253043 its reverse (3403521), we get a palindrome (4656564).

The spelling of 1253043 in words is "one million, two hundred fifty-three thousand, forty-three".