2061242845 has 8 divisors (see below), whose sum is σ = 2497982040. Its totient is φ = 1632667200.

The previous prime is 2061242803. The next prime is 2061242849. The reversal of 2061242845 is 5482421602.

It can be written as a sum of positive squares in 4 ways, for example, as 327103396 + 1734139449 = 18086^2 + 41643^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-2061242845 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2061242845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061242849) 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, 2040330 + ... + 2041339.

It is an arithmetic number, because the mean of its divisors is an integer number (312247755).

Almost surely, 2^2061242845 is an apocalyptic number.

It is an amenable number.

2061242845 is a deficient number, since it is larger than the sum of its proper divisors (436739195).

2061242845 is a wasteful number, since it uses less digits than its factorization.

2061242845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4081775.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 2061242845 is about 45400.9123807000. The cubic root of 2061242845 is about 1272.6521641971.

The spelling of 2061242845 in words is "two billion, sixty-one million, two hundred forty-two thousand, eight hundred forty-five".