2845901 has 4 divisors (see below), whose sum is σ = 2866812. Its totient is φ = 2824992.

The previous prime is 2845891. The next prime is 2845903. The reversal of 2845901 is 1095482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1095482 = 2 ⋅547741.

It can be written as a sum of positive squares in 2 ways, for example, as 2253001 + 592900 = 1501^2 + 770^2 .

It is a cyclic number.

It is not a de Polignac number, because 2845901 - 2⁶ = 2845837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2845903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10250 + ... + 10523.

It is an arithmetic number, because the mean of its divisors is an integer number (716703).

2^2845901 is an apocalyptic number.

It is an amenable number.

2845901 is a deficient number, since it is larger than the sum of its proper divisors (20911).

2845901 is a wasteful number, since it uses less digits than its factorization.

2845901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20910.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 2845901 is about 1686.9798457599. The cubic root of 2845901 is about 141.7119898043.

The spelling of 2845901 in words is "two million, eight hundred forty-five thousand, nine hundred one".