20541379 has 2 divisors, whose sum is σ = 20541380. Its totient is φ = 20541378.

The previous prime is 20541373. The next prime is 20541383. The reversal of 20541379 is 97314502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20541379 - 2³ = 20541371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20541379.

It is not a weakly prime, because it can be changed into another prime (20541371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10270689 + 10270690.

It is an arithmetic number, because the mean of its divisors is an integer number (10270690).

Almost surely, 2^20541379 is an apocalyptic number.

20541379 is a deficient number, since it is larger than the sum of its proper divisors (1).

20541379 is an equidigital number, since it uses as much as digits as its factorization.

20541379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 20541379 is about 4532.2598116172. The cubic root of 20541379 is about 273.8692033835.

The spelling of 20541379 in words is "twenty million, five hundred forty-one thousand, three hundred seventy-nine".