2541997 has 2 divisors, whose sum is σ = 2541998. Its totient is φ = 2541996.

The previous prime is 2541967. The next prime is 2542009. The reversal of 2541997 is 7991452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2499561 + 42436 = 1581^2 + 206^2 .

It is a cyclic number.

It is not a de Polignac number, because 2541997 - 2¹⁹ = 2017709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2541947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270998 + 1270999.

It is an arithmetic number, because the mean of its divisors is an integer number (1270999).

2^2541997 is an apocalyptic number.

It is an amenable number.

2541997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2541997 is an equidigital number, since it uses as much as digits as its factorization.

2541997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 37.

The square root of 2541997 is about 1594.3641365761. The cubic root of 2541997 is about 136.4766471519.

The spelling of 2541997 in words is "two million, five hundred forty-one thousand, nine hundred ninety-seven".