2045541 has 8 divisors (see below), whose sum is σ = 2737504. Its totient is φ = 1358640.

The previous prime is 2045539. The next prime is 2045543. The reversal of 2045541 is 1455402.

It is an interprime number because it is at equal distance from previous prime (2045539) and next prime (2045543).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2045541 - 2¹ = 2045539 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045543) 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 7 ways as a sum of consecutive naturals, for example, 190 + ... + 2031.

It is an arithmetic number, because the mean of its divisors is an integer number (342188).

2^2045541 is an apocalyptic number.

It is an amenable number.

2045541 is a deficient number, since it is larger than the sum of its proper divisors (691963).

2045541 is a wasteful number, since it uses less digits than its factorization.

2045541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 2045541 is about 1430.2241083131. The cubic root of 2045541 is about 126.9412380313.

The spelling of 2045541 in words is "two million, forty-five thousand, five hundred forty-one".