2131250 has 48 divisors (see below), whose sum is σ = 4499712. Its totient is φ = 750000.

The previous prime is 2131247. The next prime is 2131253. The reversal of 2131250 is 521312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2131247) and next prime (2131253).

It is not an unprimeable number, because it can be changed into a prime (2131253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68735 + ... + 68765.

It is an arithmetic number, because the mean of its divisors is an integer number (93744).

2^2131250 is an apocalyptic number.

2131250 is an abundant number, since it is smaller than the sum of its proper divisors (2368462).

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

2131250 is an equidigital number, since it uses as much as digits as its factorization.

2131250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2131250 is about 1459.8801320656. The cubic root of 2131250 is about 128.6899993779.

Adding to 2131250 its reverse (521312), we get a palindrome (2652562).

The spelling of 2131250 in words is "two million, one hundred thirty-one thousand, two hundred fifty".