235085569 has 2 divisors, whose sum is σ = 235085570. Its totient is φ = 235085568.

The previous prime is 235085563. The next prime is 235085597. The reversal of 235085569 is 965580532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223113969 + 11971600 = 14937^2 + 3460^2 .

It is a cyclic number.

It is not a de Polignac number, because 235085569 - 2²⁵ = 201531137 is a prime.

It is a super-2 number, since 2×235085569² = 110530449504107522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (235085563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117542784 + 117542785.

It is an arithmetic number, because the mean of its divisors is an integer number (117542785).

Almost surely, 2^235085569 is an apocalyptic number.

It is an amenable number.

235085569 is a deficient number, since it is larger than the sum of its proper divisors (1).

235085569 is an equidigital number, since it uses as much as digits as its factorization.

235085569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 43.

The square root of 235085569 is about 15332.5004157835. The cubic root of 235085569 is about 617.1754704431.

The spelling of 235085569 in words is "two hundred thirty-five million, eighty-five thousand, five hundred sixty-nine".