20945363 has 2 divisors, whose sum is σ = 20945364. Its totient is φ = 20945362.

The previous prime is 20945321. The next prime is 20945369. The reversal of 20945363 is 36354902.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20945363 - 2¹⁴ = 20928979 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20945369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10472681 + 10472682.

It is an arithmetic number, because the mean of its divisors is an integer number (10472682).

Almost surely, 2^20945363 is an apocalyptic number.

20945363 is a deficient number, since it is larger than the sum of its proper divisors (1).

20945363 is an equidigital number, since it uses as much as digits as its factorization.

20945363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 20945363 is about 4576.6104269426. The cubic root of 20945363 is about 275.6529410368.

The spelling of 20945363 in words is "twenty million, nine hundred forty-five thousand, three hundred sixty-three".