1344615553 has 2 divisors, whose sum is σ = 1344615554. Its totient is φ = 1344615552.

The previous prime is 1344615539. The next prime is 1344615583. The reversal of 1344615553 is 3555164431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1179441649 + 165173904 = 34343^2 + 12852^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1344615553 is a prime.

It is not a weakly prime, because it can be changed into another prime (1344615583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672307776 + 672307777.

It is an arithmetic number, because the mean of its divisors is an integer number (672307777).

Almost surely, 2^1344615553 is an apocalyptic number.

It is an amenable number.

1344615553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344615553 is an equidigital number, since it uses as much as digits as its factorization.

1344615553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108000, while the sum is 37.

The square root of 1344615553 is about 36668.9998909160. Note that the first 3 decimals coincide. The cubic root of 1344615553 is about 1103.7381234146.

Adding to 1344615553 its reverse (3555164431), we get a palindrome (4899779984).

The spelling of 1344615553 in words is "one billion, three hundred forty-four million, six hundred fifteen thousand, five hundred fifty-three".