1266531532 has 48 divisors (see below), whose sum is σ = 2584848448. Its totient is φ = 531774720.

The previous prime is 1266531521. The next prime is 1266531551. The reversal of 1266531532 is 2351356621.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 471778 + ... + 474454.

Almost surely, 2^1266531532 is an apocalyptic number.

It is an amenable number.

1266531532 is an abundant number, since it is smaller than the sum of its proper divisors (1318316916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1266531532 is a wasteful number, since it uses less digits than its factorization.

1266531532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3026 (or 3024 counting only the distinct ones).

The product of its digits is 32400, while the sum is 34.

The square root of 1266531532 is about 35588.3623112950. The cubic root of 1266531532 is about 1081.9453769107.

The spelling of 1266531532 in words is "one billion, two hundred sixty-six million, five hundred thirty-one thousand, five hundred thirty-two".