2152021533 has 8 divisors (see below), whose sum is σ = 2898943488. Its totient is φ = 1419890304.

The previous prime is 2152021523. The next prime is 2152021549. The reversal of 2152021533 is 3351202512.

It is a happy number.

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

It is not a de Polignac number, because 2152021533 - 2⁹ = 2152021021 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152021523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3697341 + ... + 3697922.

It is an arithmetic number, because the mean of its divisors is an integer number (362367936).

Almost surely, 2^2152021533 is an apocalyptic number.

It is an amenable number.

2152021533 is a deficient number, since it is larger than the sum of its proper divisors (746921955).

2152021533 is an equidigital number, since it uses as much as digits as its factorization.

2152021533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7395363.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2152021533 is about 46389.8861067798. The cubic root of 2152021533 is about 1291.0672683163.

The spelling of 2152021533 in words is "two billion, one hundred fifty-two million, twenty-one thousand, five hundred thirty-three".