564814231 has 4 divisors (see below), whose sum is σ = 564903000. Its totient is φ = 564725464.

The previous prime is 564814223. The next prime is 564814249. The reversal of 564814231 is 132418465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 564814231 - 2³ = 564814223 is a prime.

It is a super-2 number, since 2×564814231² = 638030231080242722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564814291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34036 + ... + 47833.

It is an arithmetic number, because the mean of its divisors is an integer number (141225750).

Almost surely, 2^564814231 is an apocalyptic number.

564814231 is a deficient number, since it is larger than the sum of its proper divisors (88769).

564814231 is an equidigital number, since it uses as much as digits as its factorization.

564814231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88768.

The product of its digits is 23040, while the sum is 34.

The square root of 564814231 is about 23765.8206464662. The cubic root of 564814231 is about 826.6123258338.

The spelling of 564814231 in words is "five hundred sixty-four million, eight hundred fourteen thousand, two hundred thirty-one".