9130181 has 4 divisors (see below), whose sum is σ = 9173664. Its totient is φ = 9086700.

The previous prime is 9130153. The next prime is 9130201. The reversal of 9130181 is 1810319.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1810319 = 7 ⋅258617.

It is a cyclic number.

It is not a de Polignac number, because 9130181 - 2⁶ = 9130117 is a prime.

It is a super-2 number, since 2×9130181² = 166720410185522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9130111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21425 + ... + 21846.

It is an arithmetic number, because the mean of its divisors is an integer number (2293416).

Almost surely, 2^9130181 is an apocalyptic number.

It is an amenable number.

9130181 is a deficient number, since it is larger than the sum of its proper divisors (43483).

9130181 is a wasteful number, since it uses less digits than its factorization.

9130181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43482.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 9130181 is about 3021.6189369277. The cubic root of 9130181 is about 209.0065014804.

The spelling of 9130181 in words is "nine million, one hundred thirty thousand, one hundred eighty-one".