345132231 has 8 divisors (see below), whose sum is σ = 460263024. Its totient is φ = 230044800.

The previous prime is 345132217. The next prime is 345132257. The reversal of 345132231 is 132231543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 345132231 - 2⁶ = 345132167 is a prime.

It is a super-3 number, since 3×345132231³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345132211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21631 + ... + 34031.

It is an arithmetic number, because the mean of its divisors is an integer number (57532878).

Almost surely, 2^345132231 is an apocalyptic number.

345132231 is a deficient number, since it is larger than the sum of its proper divisors (115130793).

345132231 is a wasteful number, since it uses less digits than its factorization.

345132231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21681.

The product of its digits is 2160, while the sum is 24.

The square root of 345132231 is about 18577.7348188631. The cubic root of 345132231 is about 701.4475019843.

Adding to 345132231 its reverse (132231543), we get a palindrome (477363774).

The spelling of 345132231 in words is "three hundred forty-five million, one hundred thirty-two thousand, two hundred thirty-one".