2046020261 has 4 divisors (see below), whose sum is σ = 2166374412. Its totient is φ = 1925666112.

The previous prime is 2046020233. The next prime is 2046020279. The reversal of 2046020261 is 1620206402.

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 1839552100 + 206468161 = 42890^2 + 14369^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2046020261 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 (2046020201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60177050 + ... + 60177083.

It is an arithmetic number, because the mean of its divisors is an integer number (541593603).

Almost surely, 2^2046020261 is an apocalyptic number.

It is an amenable number.

2046020261 is a deficient number, since it is larger than the sum of its proper divisors (120354151).

2046020261 is a wasteful number, since it uses less digits than its factorization.

2046020261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120354150.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2046020261 is about 45232.9554749632. The cubic root of 2046020261 is about 1269.5115117638.

Adding to 2046020261 its reverse (1620206402), we get a palindrome (3666226663).

The spelling of 2046020261 in words is "two billion, forty-six million, twenty thousand, two hundred sixty-one".