2131266 has 8 divisors (see below), whose sum is σ = 4262544. Its totient is φ = 710420.

The previous prime is 2131253. The next prime is 2131267. The reversal of 2131266 is 6621312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

2131266 is an admirable number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2131267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177600 + ... + 177611.

It is an arithmetic number, because the mean of its divisors is an integer number (532818).

2^2131266 is an apocalyptic number.

2131266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2131266 is a wasteful number, since it uses less digits than its factorization.

2131266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355216.

The product of its digits is 432, while the sum is 21.

The square root of 2131266 is about 1459.8856119573. The cubic root of 2131266 is about 128.6903214166.

Adding to 2131266 its reverse (6621312), we get a palindrome (8752578).

The spelling of 2131266 in words is "two million, one hundred thirty-one thousand, two hundred sixty-six".