1264661530 has 16 divisors (see below), whose sum is σ = 2483335584. Its totient is φ = 459876880.

The previous prime is 1264661513. The next prime is 1264661557. The reversal of 1264661530 is 351664621.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 5748352 + ... + 5748571.

It is an arithmetic number, because the mean of its divisors is an integer number (155208474).

Almost surely, 2^1264661530 is an apocalyptic number.

1264661530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1264661530 is a deficient number, since it is larger than the sum of its proper divisors (1218674054).

1264661530 is a wasteful number, since it uses less digits than its factorization.

1264661530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11496941.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 1264661530 is about 35562.0799447951. The cubic root of 1264661530 is about 1081.4126262344.

The spelling of 1264661530 in words is "one billion, two hundred sixty-four million, six hundred sixty-one thousand, five hundred thirty".