10081731 has 16 divisors (see below), whose sum is σ = 15527808. Its totient is φ = 5750400.

The previous prime is 10081717. The next prime is 10081733. The reversal of 10081731 is 13718001.

It is not a de Polignac number, because 10081731 - 2⁵ = 10081699 is a prime.

It is a super-2 number, since 2×10081731² = 203282599912722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10081698 and 10081707.

It is not an unprimeable number, because it can be changed into a prime (10081733) 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, 8425 + ... + 9546.

It is an arithmetic number, because the mean of its divisors is an integer number (970488).

Almost surely, 2^10081731 is an apocalyptic number.

10081731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10081731 is a deficient number, since it is larger than the sum of its proper divisors (5446077).

10081731 is a wasteful number, since it uses less digits than its factorization.

10081731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18002.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 10081731 is about 3175.1741684512. The cubic root of 10081731 is about 216.0288241712.

Adding to 10081731 its reverse (13718001), we get a palindrome (23799732).

The spelling of 10081731 in words is "ten million, eighty-one thousand, seven hundred thirty-one".