345130312 has 8 divisors (see below), whose sum is σ = 647119350. Its totient is φ = 172565152.

The previous prime is 345130301. The next prime is 345130337. The reversal of 345130312 is 213031543.

It can be written as a sum of positive squares in only one way, i.e., 340993156 + 4137156 = 18466^2 + 2034^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×345130312³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21570637 + ... + 21570652.

Almost surely, 2^345130312 is an apocalyptic number.

It is an amenable number.

345130312 is a deficient number, since it is larger than the sum of its proper divisors (301989038).

345130312 is a wasteful number, since it uses less digits than its factorization.

345130312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43141295 (or 43141291 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 345130312 is about 18577.6831709446. The cubic root of 345130312 is about 701.4462019220.

Adding to 345130312 its reverse (213031543), we get a palindrome (558161855).

The spelling of 345130312 in words is "three hundred forty-five million, one hundred thirty thousand, three hundred twelve".