7101681 has 16 divisors (see below), whose sum is σ = 9725568. Its totient is φ = 4608000.

The previous prime is 7101673. The next prime is 7101683. The reversal of 7101681 is 1861017.

It is not a de Polignac number, because 7101681 - 2³ = 7101673 is a prime.

It is a super-2 number, since 2×7101681² = 100867746051522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7101683) 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 15 ways as a sum of consecutive naturals, for example, 27505 + ... + 27761.

It is an arithmetic number, because the mean of its divisors is an integer number (607848).

Almost surely, 2^7101681 is an apocalyptic number.

It is an amenable number.

7101681 is a deficient number, since it is larger than the sum of its proper divisors (2623887).

7101681 is a wasteful number, since it uses less digits than its factorization.

7101681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472.

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 7101681 is about 2664.8979342556. The cubic root of 7101681 is about 192.2149015197.

Adding to 7101681 its product of nonzero digits (336), we get a palindrome (7102017).

Adding to 7101681 its reverse (1861017), we get a palindrome (8962698).

The spelling of 7101681 in words is "seven million, one hundred one thousand, six hundred eighty-one".