2021641153 has 8 divisors (see below), whose sum is σ = 2316745472. Its totient is φ = 1728111456.

The previous prime is 2021641123. The next prime is 2021641157. The reversal of 2021641153 is 3511461202.

It is a happy number.

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 2021641153 - 2²⁹ = 1484770241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021641157) 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 7 ways as a sum of consecutive naturals, for example, 390900 + ... + 396037.

It is an arithmetic number, because the mean of its divisors is an integer number (289593184).

Almost surely, 2^2021641153 is an apocalyptic number.

It is an amenable number.

2021641153 is a deficient number, since it is larger than the sum of its proper divisors (295104319).

2021641153 is an equidigital number, since it uses as much as digits as its factorization.

2021641153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787311.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2021641153 is about 44962.6639891366. The cubic root of 2021641153 is about 1264.4491142348.

The spelling of 2021641153 in words is "two billion, twenty-one million, six hundred forty-one thousand, one hundred fifty-three".