1343194553 has 2 divisors, whose sum is σ = 1343194554. Its totient is φ = 1343194552.

The previous prime is 1343194513. The next prime is 1343194583. The reversal of 1343194553 is 3554913431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 928542784 + 414651769 = 30472^2 + 20363^2 .

It is an emirp because it is prime and its reverse (3554913431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1343194553 - 2⁸ = 1343194297 is a prime.

It is not a weakly prime, because it can be changed into another prime (1343194513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671597276 + 671597277.

It is an arithmetic number, because the mean of its divisors is an integer number (671597277).

Almost surely, 2^1343194553 is an apocalyptic number.

It is an amenable number.

1343194553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343194553 is an equidigital number, since it uses as much as digits as its factorization.

1343194553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 38.

The square root of 1343194553 is about 36649.6187292583. The cubic root of 1343194553 is about 1103.3491734039.

The spelling of 1343194553 in words is "one billion, three hundred forty-three million, one hundred ninety-four thousand, five hundred fifty-three".