7040181 has 4 divisors (see below), whose sum is σ = 9386912. Its totient is φ = 4693452.

The previous prime is 7040179. The next prime is 7040183. The reversal of 7040181 is 1810407.

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 an interprime number because it is at equal distance from previous prime (7040179) and next prime (7040183).

It is not a de Polignac number, because 7040181 - 2¹ = 7040179 is a prime.

It is a super-2 number, since 2×7040181² = 99128297025522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7040183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173361 + ... + 1173366.

It is an arithmetic number, because the mean of its divisors is an integer number (2346728).

Almost surely, 2^7040181 is an apocalyptic number.

It is an amenable number.

7040181 is a deficient number, since it is larger than the sum of its proper divisors (2346731).

7040181 is a wasteful number, since it uses less digits than its factorization.

7040181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346730.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 7040181 is about 2653.3339405359. Note that the first 3 decimals coincide. The cubic root of 7040181 is about 191.6584367817.

Adding to 7040181 its reverse (1810407), we get a palindrome (8850588).

The spelling of 7040181 in words is "seven million, forty thousand, one hundred eighty-one".