1253468453 has 4 divisors (see below), whose sum is σ = 1255641420. Its totient is φ = 1251295488.

The previous prime is 1253468423. The next prime is 1253468471. The reversal of 1253468453 is 3548643521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3548643521 = 41 ⋅86552281.

It can be written as a sum of positive squares in 2 ways, for example, as 1176695809 + 76772644 = 34303^2 + 8762^2 .

It is a cyclic number.

It is not a de Polignac number, because 1253468453 - 2⁶ = 1253468389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1253468453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253468423) 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, 1085618 + ... + 1086771.

It is an arithmetic number, because the mean of its divisors is an integer number (313910355).

Almost surely, 2^1253468453 is an apocalyptic number.

It is an amenable number.

1253468453 is a deficient number, since it is larger than the sum of its proper divisors (2172967).

1253468453 is an equidigital number, since it uses as much as digits as its factorization.

1253468453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172966.

The product of its digits is 345600, while the sum is 41.

The square root of 1253468453 is about 35404.3564127354. The cubic root of 1253468453 is about 1078.2127656262.

The spelling of 1253468453 in words is "one billion, two hundred fifty-three million, four hundred sixty-eight thousand, four hundred fifty-three".