9133422381 has 10 divisors (see below), whose sum is σ = 13643754542. Its totient is φ = 6088948200.

The previous prime is 9133422323. The next prime is 9133422449. The reversal of 9133422381 is 1832243319.

9133422381 is a `hidden beast` number, since 91 + 334 + 2 + 238 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5481033156 + 3652389225 = 74034^2 + 60435^2 .

It is not a de Polignac number, because 9133422381 - 2⁶ = 9133422317 is a prime.

It is a super-2 number, since 2×9133422381² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9133422301) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 56379070 + ... + 56379231.

Almost surely, 2^9133422381 is an apocalyptic number.

It is an amenable number.

9133422381 is a deficient number, since it is larger than the sum of its proper divisors (4510332161).

9133422381 is a wasteful number, since it uses less digits than its factorization.

9133422381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112758313 (or 112758304 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 9133422381 is about 95568.9404618467. The cubic root of 9133422381 is about 2090.3123226239.

The spelling of 9133422381 in words is "nine billion, one hundred thirty-three million, four hundred twenty-two thousand, three hundred eighty-one".