609286231 has 2 divisors, whose sum is σ = 609286232. Its totient is φ = 609286230.

The previous prime is 609286229. The next prime is 609286241. The reversal of 609286231 is 132682906.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 609286231 - 2¹ = 609286229 is a prime.

It is a super-2 number, since 2×609286231² = 742459422572370722, which contains 22 as substring.

Together with 609286229, it forms a pair of twin primes.

It is equal to p_31784149 and since 609286231 and 31784149 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (609286241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304643115 + 304643116.

It is an arithmetic number, because the mean of its divisors is an integer number (304643116).

Almost surely, 2^609286231 is an apocalyptic number.

609286231 is a deficient number, since it is larger than the sum of its proper divisors (1).

609286231 is an equidigital number, since it uses as much as digits as its factorization.

609286231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 609286231 is about 24683.7240099625. The cubic root of 609286231 is about 847.7616916503.

The spelling of 609286231 in words is "six hundred nine million, two hundred eighty-six thousand, two hundred thirty-one".