1347256949 has 2 divisors, whose sum is σ = 1347256950. Its totient is φ = 1347256948.

The previous prime is 1347256861. The next prime is 1347257057. The reversal of 1347256949 is 9496527431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 962116324 + 385140625 = 31018^2 + 19625^2 .

It is a cyclic number.

It is not a de Polignac number, because 1347256949 - 2²⁰ = 1346208373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1347256897 and 1347256906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1347256549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673628474 + 673628475.

It is an arithmetic number, because the mean of its divisors is an integer number (673628475).

Almost surely, 2^1347256949 is an apocalyptic number.

It is an amenable number.

1347256949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1347256949 is an equidigital number, since it uses as much as digits as its factorization.

1347256949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 50.

The square root of 1347256949 is about 36704.9989647187. The cubic root of 1347256949 is about 1104.4603874859.

The spelling of 1347256949 in words is "one billion, three hundred forty-seven million, two hundred fifty-six thousand, nine hundred forty-nine".