10201681 has 8 divisors (see below), whose sum is σ = 11731904. Its totient is φ = 8689680.

The previous prime is 10201663. The next prime is 10201693. The reversal of 10201681 is 18610201.

10201681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10201681 - 2⁷ = 10201553 is a prime.

It is a super-2 number, since 2×10201681² = 208148590451522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10201181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3330 + ... + 5611.

It is an arithmetic number, because the mean of its divisors is an integer number (1466488).

Almost surely, 2^10201681 is an apocalyptic number.

It is an amenable number.

10201681 is a deficient number, since it is larger than the sum of its proper divisors (1530223).

10201681 is an equidigital number, since it uses as much as digits as its factorization.

10201681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9111.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 10201681 is about 3194.0070444506. The cubic root of 10201681 is about 216.8822015619.

Adding to 10201681 its reverse (18610201), we get a palindrome (28811882).

It can be divided in two parts, 1020 and 1681, that added together give a triangular number (2701 = T₇₃).

The spelling of 10201681 in words is "ten million, two hundred one thousand, six hundred eighty-one".