2021075481 has 32 divisors (see below), whose sum is σ = 3013355520. Its totient is φ = 1198317824.

The previous prime is 2021075479. The next prime is 2021075489. The reversal of 2021075481 is 1845701202.

It is a cyclic number.

It is not a de Polignac number, because 2021075481 - 2¹ = 2021075479 is a prime.

It is a super-2 number, since 2×2021075481² = 8169492199798762722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2021075489) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86980 + ... + 107738.

It is an arithmetic number, because the mean of its divisors is an integer number (94167360).

Almost surely, 2^2021075481 is an apocalyptic number.

It is an amenable number.

2021075481 is a deficient number, since it is larger than the sum of its proper divisors (992280039).

2021075481 is a wasteful number, since it uses less digits than its factorization.

2021075481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20885.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 2021075481 is about 44956.3730854703. The cubic root of 2021075481 is about 1264.3311687757.

Adding to 2021075481 its reverse (1845701202), we get a palindrome (3866776683).

The spelling of 2021075481 in words is "two billion, twenty-one million, seventy-five thousand, four hundred eighty-one".