20235269 has 2 divisors, whose sum is σ = 20235270. Its totient is φ = 20235268.

The previous prime is 20235251. The next prime is 20235329. The reversal of 20235269 is 96253202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19492225 + 743044 = 4415^2 + 862^2 .

It is a cyclic number.

It is not a de Polignac number, because 20235269 - 2⁸ = 20235013 is a prime.

It is a super-2 number, since 2×20235269² = 818932223004722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20235169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10117634 + 10117635.

It is an arithmetic number, because the mean of its divisors is an integer number (10117635).

Almost surely, 2^20235269 is an apocalyptic number.

It is an amenable number.

20235269 is a deficient number, since it is larger than the sum of its proper divisors (1).

20235269 is an equidigital number, since it uses as much as digits as its factorization.

20235269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 20235269 is about 4498.3629244426. The cubic root of 20235269 is about 272.5019790559.

The spelling of 20235269 in words is "twenty million, two hundred thirty-five thousand, two hundred sixty-nine".