2901601 has 2 divisors, whose sum is σ = 2901602. Its totient is φ = 2901600.

The previous prime is 2901593. The next prime is 2901607. The reversal of 2901601 is 1061092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2512225 + 389376 = 1585^2 + 624^2 .

It is a cyclic number.

It is not a de Polignac number, because 2901601 - 2³ = 2901593 is a prime.

It is a Chen prime.

2901601 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2901607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1450800 + 1450801.

It is an arithmetic number, because the mean of its divisors is an integer number (1450801).

2^2901601 is an apocalyptic number.

It is an amenable number.

2901601 is a deficient number, since it is larger than the sum of its proper divisors (1).

2901601 is an equidigital number, since it uses as much as digits as its factorization.

2901601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 2901601 is about 1703.4086415185. The cubic root of 2901601 is about 142.6305523587.

Adding to 2901601 its reverse (1061092), we get a palindrome (3962693).

It can be divided in two parts, 290 and 1601, that added together give a triangular number (1891 = T₆₁).

The spelling of 2901601 in words is "two million, nine hundred one thousand, six hundred one".