2021234659 has 8 divisors (see below), whose sum is σ = 2062346832. Its totient is φ = 1980232800.

The previous prime is 2021234653. The next prime is 2021234693. The reversal of 2021234659 is 9564321202.

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 2021234659 - 2⁷ = 2021234531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021234653) 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, 9952 + ... + 64354.

It is an arithmetic number, because the mean of its divisors is an integer number (257793354).

Almost surely, 2^2021234659 is an apocalyptic number.

2021234659 is a deficient number, since it is larger than the sum of its proper divisors (41112173).

2021234659 is an equidigital number, since it uses as much as digits as its factorization.

2021234659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55157.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 2021234659 is about 44958.1434113999. The cubic root of 2021234659 is about 1264.3643604147.

The spelling of 2021234659 in words is "two billion, twenty-one million, two hundred thirty-four thousand, six hundred fifty-nine".