20951341 has 4 divisors (see below), whose sum is σ = 21000384. Its totient is φ = 20902300.

The previous prime is 20951323. The next prime is 20951347. The reversal of 20951341 is 14315902.

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.

It is a cyclic number.

It is not a de Polignac number, because 20951341 - 2⁵ = 20951309 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 (20951347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23875 + ... + 24736.

It is an arithmetic number, because the mean of its divisors is an integer number (5250096).

Almost surely, 2^20951341 is an apocalyptic number.

It is an amenable number.

20951341 is a deficient number, since it is larger than the sum of its proper divisors (49043).

20951341 is an equidigital number, since it uses as much as digits as its factorization.

20951341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49042.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 20951341 is about 4577.2634837859. The cubic root of 20951341 is about 275.6791631739.

The spelling of 20951341 in words is "twenty million, nine hundred fifty-one thousand, three hundred forty-one".