2012261 has 4 divisors (see below), whose sum is σ = 2018112. Its totient is φ = 2006412.

The previous prime is 2012243. The next prime is 2012287. The reversal of 2012261 is 1622102.

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 a de Polignac number, because none of the positive numbers 2^k-2012261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012221) 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, 2375 + ... + 3108.

It is an arithmetic number, because the mean of its divisors is an integer number (504528).

2^2012261 is an apocalyptic number.

It is an amenable number.

2012261 is a deficient number, since it is larger than the sum of its proper divisors (5851).

2012261 is an equidigital number, since it uses as much as digits as its factorization.

2012261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5850.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2012261 is about 1418.5418569785. The cubic root of 2012261 is about 126.2490455112.

Adding to 2012261 its reverse (1622102), we get a palindrome (3634363).

The spelling of 2012261 in words is "two million, twelve thousand, two hundred sixty-one".