1359430649 has 2 divisors, whose sum is σ = 1359430650. Its totient is φ = 1359430648.

The previous prime is 1359430643. The next prime is 1359430661. The reversal of 1359430649 is 9460349531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1123255225 + 236175424 = 33515^2 + 15368^2 .

It is a cyclic number.

It is not a de Polignac number, because 1359430649 - 2⁸ = 1359430393 is a prime.

It is a super-2 number, since 2×1359430649² = 3696103378881122402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1359430643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 679715324 + 679715325.

It is an arithmetic number, because the mean of its divisors is an integer number (679715325).

Almost surely, 2^1359430649 is an apocalyptic number.

It is an amenable number.

1359430649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1359430649 is an equidigital number, since it uses as much as digits as its factorization.

1359430649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 44.

The square root of 1359430649 is about 36870.4576727765. The cubic root of 1359430649 is about 1107.7770214390. Note that the first 3 decimals are identical.

The spelling of 1359430649 in words is "one billion, three hundred fifty-nine million, four hundred thirty thousand, six hundred forty-nine".