2541961 has 2 divisors, whose sum is σ = 2541962. Its totient is φ = 2541960.

The previous prime is 2541949. The next prime is 2541967. The reversal of 2541961 is 1691452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1452025 + 1089936 = 1205^2 + 1044^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2541961 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2541967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270980 + 1270981.

It is an arithmetic number, because the mean of its divisors is an integer number (1270981).

2^2541961 is an apocalyptic number.

2541961 is the 921-st hex number.

It is an amenable number.

2541961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2541961 is an equidigital number, since it uses as much as digits as its factorization.

2541961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 28.

The square root of 2541961 is about 1594.3528467689. The cubic root of 2541961 is about 136.4760028839.

The spelling of 2541961 in words is "two million, five hundred forty-one thousand, nine hundred sixty-one".