2611481 has 2 divisors, whose sum is σ = 2611482. Its totient is φ = 2611480.

The previous prime is 2611457. The next prime is 2611487. The reversal of 2611481 is 1841162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2611456 + 25 = 1616^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 2611481 - 2¹⁴ = 2595097 is a prime.

It is a super-2 number, since 2×2611481² = 13639666026722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2611487) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1305740 + 1305741.

It is an arithmetic number, because the mean of its divisors is an integer number (1305741).

2^2611481 is an apocalyptic number.

It is an amenable number.

2611481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2611481 is an equidigital number, since it uses as much as digits as its factorization.

2611481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 23.

The square root of 2611481 is about 1616.0077351300. The cubic root of 2611481 is about 137.7089890793.

The spelling of 2611481 in words is "two million, six hundred eleven thousand, four hundred eighty-one".