345333231 has 6 divisors (see below), whose sum is σ = 498814680. Its totient is φ = 230222148.

The previous prime is 345333217. The next prime is 345333271. The reversal of 345333231 is 132333543.

It is a happy number.

It is not a de Polignac number, because 345333231 - 2⁵ = 345333199 is a prime.

It is a super-2 number, since 2×345333231² = 238510080865798722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 345333195 and 345333204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345333271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19185171 + ... + 19185188.

It is an arithmetic number, because the mean of its divisors is an integer number (83135780).

Almost surely, 2^345333231 is an apocalyptic number.

345333231 is a deficient number, since it is larger than the sum of its proper divisors (153481449).

345333231 is a wasteful number, since it uses less digits than its factorization.

345333231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38370365 (or 38370362 counting only the distinct ones).

The product of its digits is 9720, while the sum is 27.

The square root of 345333231 is about 18583.1437329640. The cubic root of 345333231 is about 701.5836465049.

Adding to 345333231 its reverse (132333543), we get a palindrome (477666774).

The spelling of 345333231 in words is "three hundred forty-five million, three hundred thirty-three thousand, two hundred thirty-one".