1271146264 has 16 divisors (see below), whose sum is σ = 2383828920. Its totient is φ = 635458560.

The previous prime is 1271146259. The next prime is 1271146273. The reversal of 1271146264 is 4626411721.

It is a congruent number.

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, 49624 + ... + 70744.

Almost surely, 2^1271146264 is an apocalyptic number.

It is an amenable number.

1271146264 is a deficient number, since it is larger than the sum of its proper divisors (1112682656).

1271146264 is a wasteful number, since it uses less digits than its factorization.

1271146264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28650 (or 28646 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 1271146264 is about 35653.1382068956. The cubic root of 1271146264 is about 1083.2578422399.

Adding to 1271146264 its reverse (4626411721), we get a palindrome (5897557985).

The spelling of 1271146264 in words is "one billion, two hundred seventy-one million, one hundred forty-six thousand, two hundred sixty-four".