2657201 has 2 divisors, whose sum is σ = 2657202. Its totient is φ = 2657200.

The previous prime is 2657197. The next prime is 2657203. The reversal of 2657201 is 1027562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2496400 + 160801 = 1580^2 + 401^2 .

It is a cyclic number.

It is not a de Polignac number, because 2657201 - 2² = 2657197 is a prime.

Together with 2657203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2657203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328600 + 1328601.

It is an arithmetic number, because the mean of its divisors is an integer number (1328601).

2^2657201 is an apocalyptic number.

It is an amenable number.

2657201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2657201 is an equidigital number, since it uses as much as digits as its factorization.

2657201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 2657201 is about 1630.0923286734. The cubic root of 2657201 is about 138.5079821802.

The spelling of 2657201 in words is "two million, six hundred fifty-seven thousand, two hundred one".