12831750 has 64 divisors (see below), whose sum is σ = 35605440. Its totient is φ = 3420000.

The previous prime is 12831743. The next prime is 12831757. The reversal of 12831750 is 5713821.

It is an interprime number because it is at equal distance from previous prime (12831743) and next prime (12831757).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12831757) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5800 + ... + 7700.

It is an arithmetic number, because the mean of its divisors is an integer number (556335).

Almost surely, 2^12831750 is an apocalyptic number.

12831750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12831750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17802720).

12831750 is an abundant number, since it is smaller than the sum of its proper divisors (22773690).

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

12831750 is a wasteful number, since it uses less digits than its factorization.

12831750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927 (or 1911 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 12831750 is about 3582.1432132175. The cubic root of 12831750 is about 234.1146709499.

It can be divided in two parts, 128 and 31750, that added together give a triangular number (31878 = T₂₅₂).

The spelling of 12831750 in words is "twelve million, eight hundred thirty-one thousand, seven hundred fifty".