3122261 has 2 divisors, whose sum is σ = 3122262. Its totient is φ = 3122260.

The previous prime is 3122233. The next prime is 3122279. The reversal of 3122261 is 1622213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2640625 + 481636 = 1625^2 + 694^2 .

It is a cyclic number.

It is not a de Polignac number, because 3122261 - 2¹⁴ = 3105877 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3122201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561130 + 1561131.

It is an arithmetic number, because the mean of its divisors is an integer number (1561131).

Almost surely, 2^3122261 is an apocalyptic number.

It is an amenable number.

3122261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3122261 is an equidigital number, since it uses as much as digits as its factorization.

3122261 is an evil number, because the sum of its binary digits is even.

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

The square root of 3122261 is about 1766.9920769488. The cubic root of 3122261 is about 146.1581603741.

Adding to 3122261 its reverse (1622213), we get a palindrome (4744474).

The spelling of 3122261 in words is "three million, one hundred twenty-two thousand, two hundred sixty-one".