1264616603 has 2 divisors, whose sum is σ = 1264616604. Its totient is φ = 1264616602.

The previous prime is 1264616581. The next prime is 1264616641. The reversal of 1264616603 is 3066164621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1264616603 - 2²⁶ = 1197507739 is a prime.

It is a super-3 number, since 3×1264616603³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1264616203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632308301 + 632308302.

It is an arithmetic number, because the mean of its divisors is an integer number (632308302).

Almost surely, 2^1264616603 is an apocalyptic number.

1264616603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264616603 is an equidigital number, since it uses as much as digits as its factorization.

1264616603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 1264616603 is about 35561.4482691580. The cubic root of 1264616603 is about 1081.3998203836.

The spelling of 1264616603 in words is "one billion, two hundred sixty-four million, six hundred sixteen thousand, six hundred three".