1324260649 has 2 divisors, whose sum is σ = 1324260650. Its totient is φ = 1324260648.

The previous prime is 1324260643. The next prime is 1324260653. The reversal of 1324260649 is 9460624231.

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., 1278563049 + 45697600 = 35757^2 + 6760^2 .

It is a cyclic number.

It is not a de Polignac number, because 1324260649 - 2⁹ = 1324260137 is a prime.

It is not a weakly prime, because it can be changed into another prime (1324260643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662130324 + 662130325.

It is an arithmetic number, because the mean of its divisors is an integer number (662130325).

Almost surely, 2^1324260649 is an apocalyptic number.

It is an amenable number.

1324260649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1324260649 is an equidigital number, since it uses as much as digits as its factorization.

1324260649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 1324260649 is about 36390.3922622442. The cubic root of 1324260649 is about 1098.1402871285.

The spelling of 1324260649 in words is "one billion, three hundred twenty-four million, two hundred sixty thousand, six hundred forty-nine".