1406310649 has 2 divisors, whose sum is σ = 1406310650. Its totient is φ = 1406310648.

The previous prime is 1406310553. The next prime is 1406310667. The reversal of 1406310649 is 9460136041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1388307600 + 18003049 = 37260^2 + 4243^2 .

It is an emirp because it is prime and its reverse (9460136041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1406310649 is a prime.

It is not a weakly prime, because it can be changed into another prime (1406320649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703155324 + 703155325.

It is an arithmetic number, because the mean of its divisors is an integer number (703155325).

Almost surely, 2^1406310649 is an apocalyptic number.

It is an amenable number.

1406310649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406310649 is an equidigital number, since it uses as much as digits as its factorization.

1406310649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 1406310649 is about 37500.8086446146. The cubic root of 1406310649 is about 1120.3672926428.

The spelling of 1406310649 in words is "one billion, four hundred six million, three hundred ten thousand, six hundred forty-nine".