34312231 has 2 divisors, whose sum is σ = 34312232. Its totient is φ = 34312230.

The previous prime is 34312189. The next prime is 34312247. The reversal of 34312231 is 13221343.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34312231 is a prime.

It is a super-2 number, since 2×34312231² = 2354658392394722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 34312199 and 34312208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34312261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17156115 + 17156116.

It is an arithmetic number, because the mean of its divisors is an integer number (17156116).

Almost surely, 2^34312231 is an apocalyptic number.

34312231 is a deficient number, since it is larger than the sum of its proper divisors (1).

34312231 is an equidigital number, since it uses as much as digits as its factorization.

34312231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 19.

The square root of 34312231 is about 5857.6642956045. The cubic root of 34312231 is about 324.9498336769.

Adding to 34312231 its reverse (13221343), we get a palindrome (47533574).

It can be divided in two parts, 34312 and 231, that added together give a palindrome (34543).

The spelling of 34312231 in words is "thirty-four million, three hundred twelve thousand, two hundred thirty-one".