20922141 has 16 divisors (see below), whose sum is σ = 28385280. Its totient is φ = 13706160.

The previous prime is 20922119. The next prime is 20922149. The reversal of 20922141 is 14122902.

It is not a de Polignac number, because 20922141 - 2⁹ = 20921629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20922149) 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 15 ways as a sum of consecutive naturals, for example, 54436 + ... + 54818.

It is an arithmetic number, because the mean of its divisors is an integer number (1774080).

Almost surely, 2^20922141 is an apocalyptic number.

It is an amenable number.

20922141 is a deficient number, since it is larger than the sum of its proper divisors (7463139).

20922141 is a wasteful number, since it uses less digits than its factorization.

20922141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 20922141 is about 4574.0726929073. The cubic root of 20922141 is about 275.5510317707.

The spelling of 20922141 in words is "twenty million, nine hundred twenty-two thousand, one hundred forty-one".