2681573 has 2 divisors, whose sum is σ = 2681574. Its totient is φ = 2681572.

The previous prime is 2681561. The next prime is 2681579. The reversal of 2681573 is 3751862.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2666689 + 14884 = 1633^2 + 122^2 .

It is a cyclic number.

It is not a de Polignac number, because 2681573 - 2⁴ = 2681557 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2681579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340786 + 1340787.

It is an arithmetic number, because the mean of its divisors is an integer number (1340787).

2^2681573 is an apocalyptic number.

It is an amenable number.

2681573 is a deficient number, since it is larger than the sum of its proper divisors (1).

2681573 is an equidigital number, since it uses as much as digits as its factorization.

2681573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 32.

The square root of 2681573 is about 1637.5509152390. The cubic root of 2681573 is about 138.9301617665.

The spelling of 2681573 in words is "two million, six hundred eighty-one thousand, five hundred seventy-three".