10131905 has 16 divisors (see below), whose sum is σ = 13952640. Its totient is φ = 6918912.

The previous prime is 10131871. The next prime is 10131923. The reversal of 10131905 is 50913101.

It is not a de Polignac number, because 10131905 - 2⁶ = 10131841 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11366 + ... + 12224.

It is an arithmetic number, because the mean of its divisors is an integer number (872040).

Almost surely, 2^10131905 is an apocalyptic number.

It is an amenable number.

10131905 is a deficient number, since it is larger than the sum of its proper divisors (3820735).

10131905 is an equidigital number, since it uses as much as digits as its factorization.

10131905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 10131905 is about 3183.0653464860. The cubic root of 10131905 is about 216.3866033005.

The spelling of 10131905 in words is "ten million, one hundred thirty-one thousand, nine hundred five".