9132821505 has 24 divisors (see below), whose sum is σ = 15849430272. Its totient is φ = 4864928544.

The previous prime is 9132821501. The next prime is 9132821527. The reversal of 9132821505 is 5051282319.

It is not a de Polignac number, because 9132821505 - 2² = 9132821501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9132821505.

It is not an unprimeable number, because it can be changed into a prime (9132821501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85489 + ... + 159918.

It is an arithmetic number, because the mean of its divisors is an integer number (660392928).

Almost surely, 2^9132821505 is an apocalyptic number.

It is an amenable number.

9132821505 is a deficient number, since it is larger than the sum of its proper divisors (6716608767).

9132821505 is a wasteful number, since it uses less digits than its factorization.

9132821505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246245 (or 246242 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 9132821505 is about 95565.7967318852. The cubic root of 9132821505 is about 2090.2664819740.

The spelling of 9132821505 in words is "nine billion, one hundred thirty-two million, eight hundred twenty-one thousand, five hundred five".