2131274 has 16 divisors (see below), whose sum is σ = 3332448. Its totient is φ = 1021392.

The previous prime is 2131271. The next prime is 2131291. The reversal of 2131274 is 4721312.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2131271) 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 7 ways as a sum of consecutive naturals, for example, 5969 + ... + 6315.

It is an arithmetic number, because the mean of its divisors is an integer number (208278).

2^2131274 is an apocalyptic number.

2131274 is a deficient number, since it is larger than the sum of its proper divisors (1201174).

2131274 is a wasteful number, since it uses less digits than its factorization.

2131274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469.

The product of its digits is 336, while the sum is 20.

The square root of 2131274 is about 1459.8883518954. Note that the first 3 decimals coincide. The cubic root of 2131274 is about 128.6904824353.

Adding to 2131274 its reverse (4721312), we get a palindrome (6852586).

The spelling of 2131274 in words is "two million, one hundred thirty-one thousand, two hundred seventy-four".