1349556361 has 2 divisors, whose sum is σ = 1349556362. Its totient is φ = 1349556360.

The previous prime is 1349556347. The next prime is 1349556371. The reversal of 1349556361 is 1636559431.

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., 1006158400 + 343397961 = 31720^2 + 18531^2 .

It is a cyclic number.

It is not a de Polignac number, because 1349556361 - 2⁷ = 1349556233 is a prime.

It is not a weakly prime, because it can be changed into another prime (1349556371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 674778180 + 674778181.

It is an arithmetic number, because the mean of its divisors is an integer number (674778181).

Almost surely, 2^1349556361 is an apocalyptic number.

It is an amenable number.

1349556361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1349556361 is an equidigital number, since it uses as much as digits as its factorization.

1349556361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 291600, while the sum is 43.

The square root of 1349556361 is about 36736.3084835698. The cubic root of 1349556361 is about 1105.0883711393.

The spelling of 1349556361 in words is "one billion, three hundred forty-nine million, five hundred fifty-six thousand, three hundred sixty-one".