7031081 has 6 divisors (see below), whose sum is σ = 7469310. Its totient is φ = 6617216.

The previous prime is 7031071. The next prime is 7031107. The reversal of 7031081 is 1801307.

It can be written as a sum of positive squares in 3 ways, for example, as 4000000 + 3031081 = 2000^2 + 1741^2 .

It is not a de Polignac number, because 7031081 - 2²² = 2836777 is a prime.

It is a super-2 number, since 2×7031081² = 98872200057122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7031041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11876 + ... + 12453.

It is an arithmetic number, because the mean of its divisors is an integer number (1244885).

Almost surely, 2^7031081 is an apocalyptic number.

It is an amenable number.

7031081 is a deficient number, since it is larger than the sum of its proper divisors (438229).

7031081 is a wasteful number, since it uses less digits than its factorization.

7031081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24363 (or 24346 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 7031081 is about 2651.6185623125. The cubic root of 7031081 is about 191.5758231967.

Adding to 7031081 its reverse (1801307), we get a palindrome (8832388).

The spelling of 7031081 in words is "seven million, thirty-one thousand, eighty-one".