9013793481 has 135 divisors (see below), whose sum is σ = 17343410007. Its totient is φ = 4648311360.

The previous prime is 9013793473. The next prime is 9013793483. The reversal of 9013793481 is 1843973109.

The square root of 9013793481 is 94941.

It is a perfect power (a square), and thus also a powerful number.

9013793481 is a `hidden beast` number, since 90 + 13 + 79 + 3 + 481 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5294745225 + 3719048256 = 72765^2 + 60984^2 .

It is not a de Polignac number, because 9013793481 - 2³ = 9013793473 is a prime.

It is a super-2 number, since 2×9013793481² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9013793483) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 65794045 + ... + 65794181.

Almost surely, 2^9013793481 is an apocalyptic number.

9013793481 is the 94941-st square number.

9013793481 is the 47471-st centered octagonal number.

It is an amenable number.

9013793481 is a deficient number, since it is larger than the sum of its proper divisors (8329616526).

9013793481 is a wasteful number, since it uses less digits than its factorization.

9013793481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The cubic root of 9013793481 is about 2081.1459323665.

The spelling of 9013793481 in words is "nine billion, thirteen million, seven hundred ninety-three thousand, four hundred eighty-one".