2021152186 has 16 divisors (see below), whose sum is σ = 3230855424. Its totient is φ = 946070224.

The previous prime is 2021152181. The next prime is 2021152193. The reversal of 2021152186 is 6812511202.

It is not an unprimeable number, because it can be changed into a prime (2021152181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465265 + ... + 469588.

It is an arithmetic number, because the mean of its divisors is an integer number (201928464).

Almost surely, 2^2021152186 is an apocalyptic number.

2021152186 is a deficient number, since it is larger than the sum of its proper divisors (1209703238).

2021152186 is a wasteful number, since it uses less digits than its factorization.

2021152186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934925.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 2021152186 is about 44957.2261822279. The cubic root of 2021152186 is about 1264.3471634439.

Adding to 2021152186 its reverse (6812511202), we get a palindrome (8833663388).

The spelling of 2021152186 in words is "two billion, twenty-one million, one hundred fifty-two thousand, one hundred eighty-six".