1264123307 has 2 divisors, whose sum is σ = 1264123308. Its totient is φ = 1264123306.

The previous prime is 1264123297. The next prime is 1264123351. The reversal of 1264123307 is 7033214621.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1264123307 - 2⁶ = 1264123243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1264123307.

It is not a weakly prime, because it can be changed into another prime (1264123397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632061653 + 632061654.

It is an arithmetic number, because the mean of its divisors is an integer number (632061654).

Almost surely, 2^1264123307 is an apocalyptic number.

1264123307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264123307 is an equidigital number, since it uses as much as digits as its factorization.

1264123307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1264123307 is about 35554.5117671443. The cubic root of 1264123307 is about 1081.2591928919.

Adding to 1264123307 its reverse (7033214621), we get a palindrome (8297337928).

The spelling of 1264123307 in words is "one billion, two hundred sixty-four million, one hundred twenty-three thousand, three hundred seven".