10159681 has 4 divisors (see below), whose sum is σ = 11611072. Its totient is φ = 8708292.

The previous prime is 10159673. The next prime is 10159687. The reversal of 10159681 is 18695101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10159681 - 2³ = 10159673 is a prime.

It is a super-2 number, since 2×10159681² = 206438236043522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10159687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 725685 + ... + 725698.

It is an arithmetic number, because the mean of its divisors is an integer number (2902768).

Almost surely, 2^10159681 is an apocalyptic number.

It is an amenable number.

10159681 is a deficient number, since it is larger than the sum of its proper divisors (1451391).

10159681 is an equidigital number, since it uses as much as digits as its factorization.

10159681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451390.

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 10159681 is about 3187.4254501086. The cubic root of 10159681 is about 216.5841597753.

The spelling of 10159681 in words is "ten million, one hundred fifty-nine thousand, six hundred eighty-one".