4140081 has 48 divisors (see below), whose sum is σ = 7188480. Its totient is φ = 2268000.

The previous prime is 4140079. The next prime is 4140107. The reversal of 4140081 is 1800414.

It is not a de Polignac number, because 4140081 - 2¹ = 4140079 is a prime.

It is a super-2 number, since 2×4140081² = 34280541373122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4140001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58276 + ... + 58346.

It is an arithmetic number, because the mean of its divisors is an integer number (149760).

Almost surely, 2^4140081 is an apocalyptic number.

It is an amenable number.

4140081 is a deficient number, since it is larger than the sum of its proper divisors (3048399).

4140081 is a wasteful number, since it uses less digits than its factorization.

4140081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 4140081 is about 2034.7188995043. The cubic root of 4140081 is about 160.5719245577.

Adding to 4140081 its reverse (1800414), we get a palindrome (5940495).

The spelling of 4140081 in words is "four million, one hundred forty thousand, eighty-one".