20264171 has 2 divisors, whose sum is σ = 20264172. Its totient is φ = 20264170.

The previous prime is 20264161. The next prime is 20264183. The reversal of 20264171 is 17146202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20264171 - 2¹⁸ = 20002027 is a prime.

It is not a weakly prime, because it can be changed into another prime (20264141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10132085 + 10132086.

It is an arithmetic number, because the mean of its divisors is an integer number (10132086).

Almost surely, 2^20264171 is an apocalyptic number.

20264171 is a deficient number, since it is larger than the sum of its proper divisors (1).

20264171 is an equidigital number, since it uses as much as digits as its factorization.

20264171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 20264171 is about 4501.5742801824. The cubic root of 20264171 is about 272.6316553730.

The spelling of 20264171 in words is "twenty million, two hundred sixty-four thousand, one hundred seventy-one".