235223569 has 15 divisors (see below), whose sum is σ = 275290683. Its totient is φ = 200976048.

The previous prime is 235223551. The next prime is 235223581. The reversal of 235223569 is 965322532.

The square root of 235223569 is 15337.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1500625 + 233722944 = 1225^2 + 15288^2 .

It is not a de Polignac number, because 235223569 - 2⁵ = 235223537 is a prime.

It is a super-2 number, since 2×235223569² = 110660254826195522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (235223069) 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 in 14 ways as a sum of consecutive naturals, for example, 751357 + ... + 751669.

Almost surely, 2^235223569 is an apocalyptic number.

235223569 is the 15337-th square number.

235223569 is the 7669-th centered octagonal number.

It is an amenable number.

235223569 is a deficient number, since it is larger than the sum of its proper divisors (40067114).

235223569 is an frugal number, since it uses more digits than its factorization.

235223569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654 (or 320 counting only the distinct ones).

The product of its digits is 97200, while the sum is 37.

The cubic root of 235223569 is about 617.2962116625.

It can be divided in two parts, 2352 and 23569, that added together give a square (25921 = 161²).

The spelling of 235223569 in words is "two hundred thirty-five million, two hundred twenty-three thousand, five hundred sixty-nine".