9140531 has 4 divisors (see below), whose sum is σ = 9150600. Its totient is φ = 9130464.

The previous prime is 9140519. The next prime is 9140533. The reversal of 9140531 is 1350419.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1350419 = 7 ⋅192917.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9140531 is a prime.

It is a super-2 number, since 2×9140531² = 167098613923922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9140497 and 9140506.

It is not an unprimeable number, because it can be changed into a prime (9140533) 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, 3521 + ... + 5538.

It is an arithmetic number, because the mean of its divisors is an integer number (2287650).

Almost surely, 2^9140531 is an apocalyptic number.

9140531 is a deficient number, since it is larger than the sum of its proper divisors (10069).

9140531 is a wasteful number, since it uses less digits than its factorization.

9140531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10068.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 9140531 is about 3023.3311098853. The cubic root of 9140531 is about 209.0854484511.

The spelling of 9140531 in words is "nine million, one hundred forty thousand, five hundred thirty-one".