10131930 has 24 divisors (see below), whose sum is σ = 26343252. Its totient is φ = 2701824.

The previous prime is 10131923. The next prime is 10131943. The reversal of 10131930 is 3913101.

It can be written as a sum of positive squares in 2 ways, for example, as 10131489 + 441 = 3183^2 + 21^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 56199 + ... + 56378.

Almost surely, 2^10131930 is an apocalyptic number.

10131930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10131930 is an abundant number, since it is smaller than the sum of its proper divisors (16211322).

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

10131930 is a wasteful number, since it uses less digits than its factorization.

10131930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112590 (or 112587 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

The square root of 10131930 is about 3183.0692735157. The cubic root of 10131930 is about 216.3867812750.

The spelling of 10131930 in words is "ten million, one hundred thirty-one thousand, nine hundred thirty".