652307231 has 2 divisors, whose sum is σ = 652307232. Its totient is φ = 652307230.

The previous prime is 652307213. The next prime is 652307251. The reversal of 652307231 is 132703256.

Together with previous prime (652307213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-652307231 is a prime.

It is a super-2 number, since 2×652307231² = 851009447229774722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 652307194 and 652307203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (652307251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326153615 + 326153616.

It is an arithmetic number, because the mean of its divisors is an integer number (326153616).

Almost surely, 2^652307231 is an apocalyptic number.

652307231 is a deficient number, since it is larger than the sum of its proper divisors (1).

652307231 is an equidigital number, since it uses as much as digits as its factorization.

652307231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 652307231 is about 25540.3060083469. The cubic root of 652307231 is about 867.2628251455.

The spelling of 652307231 in words is "six hundred fifty-two million, three hundred seven thousand, two hundred thirty-one".