9140081 has 2 divisors, whose sum is σ = 9140082. Its totient is φ = 9140080.

The previous prime is 9140059. The next prime is 9140093. The reversal of 9140081 is 1800419.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8755681 + 384400 = 2959^2 + 620^2 .

It is a cyclic number.

It is not a de Polignac number, because 9140081 - 2¹⁸ = 8877937 is a prime.

It is a super-2 number, since 2×9140081² = 167082161373122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9140011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4570040 + 4570041.

It is an arithmetic number, because the mean of its divisors is an integer number (4570041).

Almost surely, 2^9140081 is an apocalyptic number.

It is an amenable number.

9140081 is a deficient number, since it is larger than the sum of its proper divisors (1).

9140081 is an equidigital number, since it uses as much as digits as its factorization.

9140081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 9140081 is about 3023.2566877458. The cubic root of 9140081 is about 209.0820172137.

The spelling of 9140081 in words is "nine million, one hundred forty thousand, eighty-one".