1253431 has 4 divisors (see below), whose sum is σ = 1307952. Its totient is φ = 1198912.

The previous prime is 1253401. The next prime is 1253437. The reversal of 1253431 is 1343521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1343521 = 83 ⋅16187.

It is a cyclic number.

It is not a de Polignac number, because 1253431 - 2¹⁵ = 1220663 is a prime.

It is a super-2 number, since 2×1253431² = 3142178543522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1253399 and 1253408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27226 + ... + 27271.

It is an arithmetic number, because the mean of its divisors is an integer number (326988).

2^1253431 is an apocalyptic number.

1253431 is a deficient number, since it is larger than the sum of its proper divisors (54521).

1253431 is an equidigital number, since it uses as much as digits as its factorization.

1253431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54520.

The product of its digits is 360, while the sum is 19.

The square root of 1253431 is about 1119.5673271403. The cubic root of 1253431 is about 107.8202026703.

Adding to 1253431 its reverse (1343521), we get a palindrome (2596952).

The spelling of 1253431 in words is "one million, two hundred fifty-three thousand, four hundred thirty-one".