2061541 has 8 divisors (see below), whose sum is σ = 2127384. Its totient is φ = 1996800.

The previous prime is 2061533. The next prime is 2061551. The reversal of 2061541 is 1451602.

It can be written as a sum of positive squares in 4 ways, for example, as 1110916 + 950625 = 1054^2 + 975^2 .

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

It is a 6-Lehmer number, since φ(2061541) divides (2061541-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 2061541 - 2³ = 2061533 is a prime.

It is a Duffinian number.

2061541 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4941 + ... + 5341.

It is an arithmetic number, because the mean of its divisors is an integer number (265923).

2^2061541 is an apocalyptic number.

It is an amenable number.

2061541 is a deficient number, since it is larger than the sum of its proper divisors (65843).

2061541 is an equidigital number, since it uses as much as digits as its factorization.

2061541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2061541 is about 1435.8067418702. The cubic root of 2061541 is about 127.2713523506.

The spelling of 2061541 in words is "two million, sixty-one thousand, five hundred forty-one".