2574661 has 2 divisors, whose sum is σ = 2574662. Its totient is φ = 2574660.

The previous prime is 2574653. The next prime is 2574683. The reversal of 2574661 is 1664752.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1322500 + 1252161 = 1150^2 + 1119^2 .

It is a cyclic number.

It is not a de Polignac number, because 2574661 - 2³ = 2574653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2574601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1287330 + 1287331.

It is an arithmetic number, because the mean of its divisors is an integer number (1287331).

2^2574661 is an apocalyptic number.

It is an amenable number.

2574661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2574661 is an equidigital number, since it uses as much as digits as its factorization.

2574661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

The square root of 2574661 is about 1604.5750216179. The cubic root of 2574661 is about 137.0587241809.

Subtracting from 2574661 its reverse (1664752), we obtain a palindrome (909909).

The spelling of 2574661 in words is "two million, five hundred seventy-four thousand, six hundred sixty-one".