2132261 has 4 divisors (see below), whose sum is σ = 2224992. Its totient is φ = 2039532.

The previous prime is 2132239. The next prime is 2132267. The reversal of 2132261 is 1622312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2132261 - 2¹⁴ = 2115877 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2132267) 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 3 ways as a sum of consecutive naturals, for example, 46331 + ... + 46376.

It is an arithmetic number, because the mean of its divisors is an integer number (556248).

2^2132261 is an apocalyptic number.

It is an amenable number.

2132261 is a deficient number, since it is larger than the sum of its proper divisors (92731).

2132261 is an equidigital number, since it uses as much as digits as its factorization.

2132261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92730.

The product of its digits is 144, while the sum is 17.

The square root of 2132261 is about 1460.2263523167. The cubic root of 2132261 is about 128.7103450314.

Adding to 2132261 its reverse (1622312), we get a palindrome (3754573).

The spelling of 2132261 in words is "two million, one hundred thirty-two thousand, two hundred sixty-one".