1343215453 has 4 divisors (see below), whose sum is σ = 1343310400. Its totient is φ = 1343120508.

The previous prime is 1343215451. The next prime is 1343215459. The reversal of 1343215453 is 3545123431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3545123431 = 617 ⋅5745743.

It is a cyclic number.

It is not a de Polignac number, because 1343215453 - 2¹ = 1343215451 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 (1343215451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21525 + ... + 56122.

It is an arithmetic number, because the mean of its divisors is an integer number (335827600).

Almost surely, 2^1343215453 is an apocalyptic number.

It is an amenable number.

1343215453 is a deficient number, since it is larger than the sum of its proper divisors (94947).

1343215453 is an equidigital number, since it uses as much as digits as its factorization.

1343215453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94946.

The product of its digits is 21600, while the sum is 31.

The square root of 1343215453 is about 36649.9038607197. The cubic root of 1343215453 is about 1103.3548960493.

Adding to 1343215453 its reverse (3545123431), we get a palindrome (4888338884).

The spelling of 1343215453 in words is "one billion, three hundred forty-three million, two hundred fifteen thousand, four hundred fifty-three".