1342660549 has 2 divisors, whose sum is σ = 1342660550. Its totient is φ = 1342660548.

The previous prime is 1342660513. The next prime is 1342660577. The reversal of 1342660549 is 9450662431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1209996225 + 132664324 = 34785^2 + 11518^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342660549 - 2⁹ = 1342660037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342660049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671330274 + 671330275.

It is an arithmetic number, because the mean of its divisors is an integer number (671330275).

Almost surely, 2^1342660549 is an apocalyptic number.

It is an amenable number.

1342660549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342660549 is an equidigital number, since it uses as much as digits as its factorization.

1342660549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 1342660549 is about 36642.3327450641. The cubic root of 1342660549 is about 1103.2029372119.

The spelling of 1342660549 in words is "one billion, three hundred forty-two million, six hundred sixty thousand, five hundred forty-nine".