9145131 has 8 divisors (see below), whose sum is σ = 12209040. Its totient is φ = 6088992.

The previous prime is 9145127. The next prime is 9145139. The reversal of 9145131 is 1315419.

9145131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9145131 - 2² = 9145127 is a prime.

It is a super-2 number, since 2×9145131² = 167266842014322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9145139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1885 + ... + 4673.

It is an arithmetic number, because the mean of its divisors is an integer number (1526130).

Almost surely, 2^9145131 is an apocalyptic number.

9145131 is a deficient number, since it is larger than the sum of its proper divisors (3063909).

9145131 is a wasteful number, since it uses less digits than its factorization.

9145131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3885.

The product of its digits is 540, while the sum is 24.

The square root of 9145131 is about 3024.0917644807. The cubic root of 9145131 is about 209.1205168647.

The spelling of 9145131 in words is "nine million, one hundred forty-five thousand, one hundred thirty-one".