2021941156 has 9 divisors (see below), whose sum is σ = 3538554411. Its totient is φ = 1010925612.

The previous prime is 2021941153. The next prime is 2021941169. The reversal of 2021941156 is 6511491202.

The square root of 2021941156 is 44966.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021941153) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 78691 + ... + 101173.

Almost surely, 2^2021941156 is an apocalyptic number.

2021941156 is the 44966-th square number.

It is an amenable number.

2021941156 is a deficient number, since it is larger than the sum of its proper divisors (1516613255).

2021941156 is an frugal number, since it uses more digits than its factorization.

2021941156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44970 (or 22485 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The cubic root of 2021941156 is about 1264.5116574421.

The spelling of 2021941156 in words is "two billion, twenty-one million, nine hundred forty-one thousand, one hundred fifty-six".