345131512 has 16 divisors (see below), whose sum is σ = 705951000. Its totient is φ = 156877920.

The previous prime is 345131503. The next prime is 345131519. The reversal of 345131512 is 215131543.

It is a happy number.

It is a super-3 number, since 3×345131512³ (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 (345131519) 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 3 ways as a sum of consecutive naturals, for example, 1960887 + ... + 1961062.

Almost surely, 2^345131512 is an apocalyptic number.

It is an amenable number.

345131512 is an abundant number, since it is smaller than the sum of its proper divisors (360819488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345131512 is a wasteful number, since it uses less digits than its factorization.

345131512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3921966 (or 3921962 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 345131512 is about 18577.7154677318. The cubic root of 345131512 is about 701.4470148849.

The spelling of 345131512 in words is "three hundred forty-five million, one hundred thirty-one thousand, five hundred twelve".