1343873269 has 2 divisors, whose sum is σ = 1343873270. Its totient is φ = 1343873268.

The previous prime is 1343873257. The next prime is 1343873309. The reversal of 1343873269 is 9623783431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1119772369 + 224100900 = 33463^2 + 14970^2 .

It is a cyclic number.

It is not a de Polignac number, because 1343873269 - 2²⁵ = 1310318837 is a prime.

It is a super-2 number, since 2×1343873269² = 3611990726265492722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1343873569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671936634 + 671936635.

It is an arithmetic number, because the mean of its divisors is an integer number (671936635).

Almost surely, 2^1343873269 is an apocalyptic number.

It is an amenable number.

1343873269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343873269 is an equidigital number, since it uses as much as digits as its factorization.

1343873269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 46.

The square root of 1343873269 is about 36658.8770831841. The cubic root of 1343873269 is about 1103.5349828332.

The spelling of 1343873269 in words is "one billion, three hundred forty-three million, eight hundred seventy-three thousand, two hundred sixty-nine".