2131382 has 16 divisors (see below), whose sum is σ = 3672000. Its totient is φ = 917640.

The previous prime is 2131373. The next prime is 2131399. The reversal of 2131382 is 2831312.

It is a d-powerful number, because it can be written as 2 + 1 + 3⁶ + 1 + 3⁶ + 8⁵ + 2²¹ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2132 + ... + 2967.

It is an arithmetic number, because the mean of its divisors is an integer number (229500).

2^2131382 is an apocalyptic number.

2131382 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2131382 is a deficient number, since it is larger than the sum of its proper divisors (1540618).

2131382 is a wasteful number, since it uses less digits than its factorization.

2131382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5131.

The product of its digits is 288, while the sum is 20.

The square root of 2131382 is about 1459.9253405568. The cubic root of 2131382 is about 128.6926561488.

Adding to 2131382 its reverse (2831312), we get a palindrome (4962694).

The spelling of 2131382 in words is "two million, one hundred thirty-one thousand, three hundred eighty-two".