345334231 has 4 divisors (see below), whose sum is σ = 376728264. Its totient is φ = 313940200.

The previous prime is 345334229. The next prime is 345334271. The reversal of 345334231 is 132433543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132433543 = 11 ⋅12039413.

It is a cyclic number.

It is not a de Polignac number, because 345334231 - 2¹ = 345334229 is a prime.

It is a super-2 number, since 2×345334231² = 238511462200722722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 345334231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345334211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15697000 + ... + 15697021.

It is an arithmetic number, because the mean of its divisors is an integer number (94182066).

Almost surely, 2^345334231 is an apocalyptic number.

345334231 is a deficient number, since it is larger than the sum of its proper divisors (31394033).

345334231 is a wasteful number, since it uses less digits than its factorization.

345334231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31394032.

The product of its digits is 12960, while the sum is 28.

The square root of 345334231 is about 18583.1706390487. The cubic root of 345334231 is about 701.5843237087.

Adding to 345334231 its reverse (132433543), we get a palindrome (477767774).

The spelling of 345334231 in words is "three hundred forty-five million, three hundred thirty-four thousand, two hundred thirty-one".