20900541 has 8 divisors (see below), whose sum is σ = 28766464. Its totient is φ = 13484160.

The previous prime is 20900533. The next prime is 20900543. The reversal of 20900541 is 14500902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20900541 - 2³ = 20900533 is a prime.

It is a super-2 number, since 2×20900541² = 873665228185362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20900543) 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, 112276 + ... + 112461.

It is an arithmetic number, because the mean of its divisors is an integer number (3595808).

Almost surely, 2^20900541 is an apocalyptic number.

It is an amenable number.

20900541 is a deficient number, since it is larger than the sum of its proper divisors (7865923).

20900541 is a wasteful number, since it uses less digits than its factorization.

20900541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224771.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 20900541 is about 4571.7109488680. The cubic root of 20900541 is about 275.4561729047.

The spelling of 20900541 in words is "twenty million, nine hundred thousand, five hundred forty-one".