1343736553 has 2 divisors, whose sum is σ = 1343736554. Its totient is φ = 1343736552.

The previous prime is 1343736497. The next prime is 1343736577. The reversal of 1343736553 is 3556373431.

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., 1035101929 + 308634624 = 32173^2 + 17568^2 .

It is a cyclic number.

It is not a de Polignac number, because 1343736553 - 2⁹ = 1343736041 is a prime.

It is not a weakly prime, because it can be changed into another prime (1343536553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671868276 + 671868277.

It is an arithmetic number, because the mean of its divisors is an integer number (671868277).

Almost surely, 2^1343736553 is an apocalyptic number.

It is an amenable number.

1343736553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343736553 is an equidigital number, since it uses as much as digits as its factorization.

1343736553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 40.

The square root of 1343736553 is about 36657.0123305214. The cubic root of 1343736553 is about 1103.4975596603.

The spelling of 1343736553 in words is "one billion, three hundred forty-three million, seven hundred thirty-six thousand, five hundred fifty-three".