2081748541 has 4 divisors (see below), whose sum is σ = 2081952892. Its totient is φ = 2081544192.

The previous prime is 2081748517. The next prime is 2081748563. The reversal of 2081748541 is 1458471802.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1669049316 + 412699225 = 40854^2 + 20315^2 .

It is a cyclic number.

It is not a de Polignac number, because 2081748541 - 2⁹ = 2081748029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2081748494 and 2081748503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081748511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86046 + ... + 107551.

It is an arithmetic number, because the mean of its divisors is an integer number (520488223).

Almost surely, 2^2081748541 is an apocalyptic number.

It is an amenable number.

2081748541 is a deficient number, since it is larger than the sum of its proper divisors (204351).

2081748541 is a wasteful number, since it uses less digits than its factorization.

2081748541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204350.

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 2081748541 is about 45626.1826257687. The cubic root of 2081748541 is about 1276.8584541531.

The spelling of 2081748541 in words is "two billion, eighty-one million, seven hundred forty-eight thousand, five hundred forty-one".