10131816 has 32 divisors (see below), whose sum is σ = 25680960. Its totient is φ = 3330432.

The previous prime is 10131811. The next prime is 10131833. The reversal of 10131816 is 61813101.

It is a junction number, because it is equal to n+sod(n) for n = 10131792 and 10131801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10131811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1140 + ... + 4643.

It is an arithmetic number, because the mean of its divisors is an integer number (802530).

Almost surely, 2^10131816 is an apocalyptic number.

It is an amenable number.

10131816 is an abundant number, since it is smaller than the sum of its proper divisors (15549144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10131816 is a wasteful number, since it uses less digits than its factorization.

10131816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5865 (or 5861 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 10131816 is about 3183.0513662208. The cubic root of 10131816 is about 216.3859697091.

Adding to 10131816 its reverse (61813101), we get a palindrome (71944917).

The spelling of 10131816 in words is "ten million, one hundred thirty-one thousand, eight hundred sixteen".