1253412343 has 4 divisors (see below), whose sum is σ = 1274656680. Its totient is φ = 1232168008.

The previous prime is 1253412337. The next prime is 1253412371. The reversal of 1253412343 is 3432143521.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1253412343 - 2²⁹ = 716541431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253412143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10622080 + ... + 10622197.

It is an arithmetic number, because the mean of its divisors is an integer number (318664170).

Almost surely, 2^1253412343 is an apocalyptic number.

1253412343 is a deficient number, since it is larger than the sum of its proper divisors (21244337).

1253412343 is an equidigital number, since it uses as much as digits as its factorization.

1253412343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21244336.

The product of its digits is 8640, while the sum is 28.

The square root of 1253412343 is about 35403.5639872598. The cubic root of 1253412343 is about 1078.1966770891.

Adding to 1253412343 its reverse (3432143521), we get a palindrome (4685555864).

The spelling of 1253412343 in words is "one billion, two hundred fifty-three million, four hundred twelve thousand, three hundred forty-three".