2061615133 has 8 divisors (see below), whose sum is σ = 2133473400. Its totient is φ = 1989808128.

The previous prime is 2061615071. The next prime is 2061615139. The reversal of 2061615133 is 3315161602.

It can be written as a sum of positive squares in 4 ways, for example, as 1104764644 + 956850489 = 33238^2 + 30933^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2061615133 - 2¹³ = 2061606941 is a prime.

It is a super-2 number, since 2×2061615133² = 8500513913229215378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061615139) 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, 80685 + ... + 103117.

It is an arithmetic number, because the mean of its divisors is an integer number (266684175).

Almost surely, 2^2061615133 is an apocalyptic number.

It is an amenable number.

2061615133 is a deficient number, since it is larger than the sum of its proper divisors (71858267).

2061615133 is a wasteful number, since it uses less digits than its factorization.

2061615133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25631.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 2061615133 is about 45405.0122012978. The cubic root of 2061615133 is about 1272.7287789133.

Adding to 2061615133 its reverse (3315161602), we get a palindrome (5376776735).

The spelling of 2061615133 in words is "two billion, sixty-one million, six hundred fifteen thousand, one hundred thirty-three".