10051681 has 2 divisors, whose sum is σ = 10051682. Its totient is φ = 10051680.

The previous prime is 10051673. The next prime is 10051693. The reversal of 10051681 is 18615001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9709456 + 342225 = 3116^2 + 585^2 .

It is a cyclic number.

It is not a de Polignac number, because 10051681 - 2³ = 10051673 is a prime.

It is a super-2 number, since 2×10051681² = 202072581851522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10051631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5025840 + 5025841.

It is an arithmetic number, because the mean of its divisors is an integer number (5025841).

Almost surely, 2^10051681 is an apocalyptic number.

It is an amenable number.

10051681 is a deficient number, since it is larger than the sum of its proper divisors (1).

10051681 is an equidigital number, since it uses as much as digits as its factorization.

10051681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 10051681 is about 3170.4386131890. The cubic root of 10051681 is about 215.8139759261.

Adding to 10051681 its reverse (18615001), we get a palindrome (28666682).

The spelling of 10051681 in words is "ten million, fifty-one thousand, six hundred eighty-one".