9145081 has 4 divisors (see below), whose sum is σ = 9976464. Its totient is φ = 8313700.

The previous prime is 9145069. The next prime is 9145109. The reversal of 9145081 is 1805419.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 9145081 - 2⁵ = 9145049 is a prime.

It is a super-2 number, since 2×9145081² = 167265012993122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9145051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415675 + ... + 415696.

It is an arithmetic number, because the mean of its divisors is an integer number (2494116).

Almost surely, 2^9145081 is an apocalyptic number.

It is an amenable number.

9145081 is a deficient number, since it is larger than the sum of its proper divisors (831383).

9145081 is a wasteful number, since it uses less digits than its factorization.

9145081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831382.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 9145081 is about 3024.0834975245. The cubic root of 9145081 is about 209.1201357495.

It can be divided in two parts, 914 and 5081, that added together give a palindrome (5995).

The spelling of 9145081 in words is "nine million, one hundred forty-five thousand, eighty-one".