10131870 has 32 divisors (see below), whose sum is σ = 27790848. Its totient is φ = 2315808.

The previous prime is 10131859. The next prime is 10131871. The reversal of 10131870 is 7813101.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10131871) 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, 23914 + ... + 24333.

It is an arithmetic number, because the mean of its divisors is an integer number (868464).

Almost surely, 2^10131870 is an apocalyptic number.

10131870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10131870 is an abundant number, since it is smaller than the sum of its proper divisors (17658978).

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

10131870 is a wasteful number, since it uses less digits than its factorization.

10131870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48264.

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

The square root of 10131870 is about 3183.0598486362. The cubic root of 10131870 is about 216.3863541358.

Adding to 10131870 its reverse (7813101), we get a palindrome (17944971).

The spelling of 10131870 in words is "ten million, one hundred thirty-one thousand, eight hundred seventy".