20153227 has 2 divisors, whose sum is σ = 20153228. Its totient is φ = 20153226.

The previous prime is 20153219. The next prime is 20153251. The reversal of 20153227 is 72235102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20153227 - 2³ = 20153219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20153198 and 20153207.

It is not a weakly prime, because it can be changed into another prime (20153207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10076613 + 10076614.

It is an arithmetic number, because the mean of its divisors is an integer number (10076614).

Almost surely, 2^20153227 is an apocalyptic number.

20153227 is a deficient number, since it is larger than the sum of its proper divisors (1).

20153227 is an equidigital number, since it uses as much as digits as its factorization.

20153227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 20153227 is about 4489.2345672731. The cubic root of 20153227 is about 272.1332023116.

Adding to 20153227 its reverse (72235102), we get a palindrome (92388329).

The spelling of 20153227 in words is "twenty million, one hundred fifty-three thousand, two hundred twenty-seven".