1264126312 has 16 divisors (see below), whose sum is σ = 2434297860. Its totient is φ = 614980224.

The previous prime is 1264126243. The next prime is 1264126333. The reversal of 1264126312 is 2136214621.

It can be written as a sum of positive squares in 2 ways, for example, as 1083331396 + 180794916 = 32914^2 + 13446^2 .

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 3 ways as a sum of consecutive naturals, for example, 2135053 + ... + 2135644.

Almost surely, 2^1264126312 is an apocalyptic number.

It is an amenable number.

1264126312 is a deficient number, since it is larger than the sum of its proper divisors (1170171548).

1264126312 is a wasteful number, since it uses less digits than its factorization.

1264126312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4270740 (or 4270736 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 1264126312 is about 35554.5540261722. The cubic root of 1264126312 is about 1081.2600496599.

The spelling of 1264126312 in words is "one billion, two hundred sixty-four million, one hundred twenty-six thousand, three hundred twelve".