101426681 has 2 divisors, whose sum is σ = 101426682. Its totient is φ = 101426680.

The previous prime is 101426671. The next prime is 101426701. The reversal of 101426681 is 186624101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89113600 + 12313081 = 9440^2 + 3509^2 .

It is an emirp because it is prime and its reverse (186624101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101426681 - 2¹⁰ = 101425657 is a prime.

It is a super-2 number, since 2×101426681² = 20574743237351522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101426621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50713340 + 50713341.

It is an arithmetic number, because the mean of its divisors is an integer number (50713341).

Almost surely, 2^101426681 is an apocalyptic number.

It is an amenable number.

101426681 is a deficient number, since it is larger than the sum of its proper divisors (1).

101426681 is an equidigital number, since it uses as much as digits as its factorization.

101426681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 101426681 is about 10071.0814215753. The cubic root of 101426681 is about 466.3558240054.

The spelling of 101426681 in words is "one hundred one million, four hundred twenty-six thousand, six hundred eighty-one".