343564231 has 2 divisors, whose sum is σ = 343564232. Its totient is φ = 343564230.

The previous prime is 343564223. The next prime is 343564253. The reversal of 343564231 is 132465343.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 343564231 - 2³ = 343564223 is a prime.

It is a super-2 number, since 2×343564231² = 236072761645242722, 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 = 343564193 and 343564202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343564201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171782115 + 171782116.

It is an arithmetic number, because the mean of its divisors is an integer number (171782116).

Almost surely, 2^343564231 is an apocalyptic number.

343564231 is a deficient number, since it is larger than the sum of its proper divisors (1).

343564231 is an equidigital number, since it uses as much as digits as its factorization.

343564231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 31.

The square root of 343564231 is about 18535.4857233362. The cubic root of 343564231 is about 700.3836203387.

The spelling of 343564231 in words is "three hundred forty-three million, five hundred sixty-four thousand, two hundred thirty-one".