2061133521 has 8 divisors (see below), whose sum is σ = 2755834560. Its totient is φ = 1370260752.

The previous prime is 2061133517. The next prime is 2061133531. The reversal of 2061133521 is 1253311602.

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

It is not a de Polignac number, because 2061133521 - 2² = 2061133517 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2061133491 and 2061133500.

It is not an unprimeable number, because it can be changed into a prime (2061133511) 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, 955810 + ... + 957963.

It is an arithmetic number, because the mean of its divisors is an integer number (344479320).

Almost surely, 2^2061133521 is an apocalyptic number.

It is an amenable number.

2061133521 is a deficient number, since it is larger than the sum of its proper divisors (694701039).

2061133521 is a wasteful number, since it uses less digits than its factorization.

2061133521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914135.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 2061133521 is about 45399.7083801207. The cubic root of 2061133521 is about 1272.6296641982.

The spelling of 2061133521 in words is "two billion, sixty-one million, one hundred thirty-three thousand, five hundred twenty-one".