1346969549 has 2 divisors, whose sum is σ = 1346969550. Its totient is φ = 1346969548.

The previous prime is 1346969543. The next prime is 1346969563. The reversal of 1346969549 is 9459696431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 676936324 + 670033225 = 26018^2 + 25885^2 .

It is a cyclic number.

It is not a de Polignac number, because 1346969549 - 2²⁰ = 1345920973 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1346969494 and 1346969503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1346969543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673484774 + 673484775.

It is an arithmetic number, because the mean of its divisors is an integer number (673484775).

Almost surely, 2^1346969549 is an apocalyptic number.

It is an amenable number.

1346969549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1346969549 is an equidigital number, since it uses as much as digits as its factorization.

1346969549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6298560, while the sum is 56.

The square root of 1346969549 is about 36701.0837578402. The cubic root of 1346969549 is about 1104.3818465440.

The spelling of 1346969549 in words is "one billion, three hundred forty-six million, nine hundred sixty-nine thousand, five hundred forty-nine".