20926141 has 4 divisors (see below), whose sum is σ = 20936032. Its totient is φ = 20916252.

The previous prime is 20926093. The next prime is 20926153. The reversal of 20926141 is 14162902.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20926141 - 2⁷ = 20926013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20926181) 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 3 ways as a sum of consecutive naturals, for example, 345 + ... + 6478.

It is an arithmetic number, because the mean of its divisors is an integer number (5234008).

Almost surely, 2^20926141 is an apocalyptic number.

It is an amenable number.

20926141 is a deficient number, since it is larger than the sum of its proper divisors (9891).

20926141 is an equidigital number, since it uses as much as digits as its factorization.

20926141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9890.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 20926141 is about 4574.5099191061. The cubic root of 20926141 is about 275.5685910618.

The spelling of 20926141 in words is "twenty million, nine hundred twenty-six thousand, one hundred forty-one".