1264132536 has 32 divisors (see below), whose sum is σ = 3169305360. Its totient is φ = 420180992.

The previous prime is 1264132531. The next prime is 1264132537. The reversal of 1264132536 is 6352314621.

It is a junction number, because it is equal to n+sod(n) for n = 1264132497 and 1264132506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264132531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66135 + ... + 83078.

Almost surely, 2^1264132536 is an apocalyptic number.

It is an amenable number.

1264132536 is an abundant number, since it is smaller than the sum of its proper divisors (1905172824).

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

1264132536 is a wasteful number, since it uses less digits than its factorization.

1264132536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149575 (or 149571 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 1264132536 is about 35554.6415535300. The cubic root of 1264132536 is about 1081.2618242061.

The spelling of 1264132536 in words is "one billion, two hundred sixty-four million, one hundred thirty-two thousand, five hundred thirty-six".