345215512 has 8 divisors (see below), whose sum is σ = 647279100. Its totient is φ = 172607752.

The previous prime is 345215489. The next prime is 345215537. The reversal of 345215512 is 215512543.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21575962 + ... + 21575977.

Almost surely, 2^345215512 is an apocalyptic number.

It is an amenable number.

345215512 is a deficient number, since it is larger than the sum of its proper divisors (302063588).

345215512 is a wasteful number, since it uses less digits than its factorization.

345215512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43151945 (or 43151941 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 345215512 is about 18579.9761033216. The cubic root of 345215512 is about 701.5039176091.

The spelling of 345215512 in words is "three hundred forty-five million, two hundred fifteen thousand, five hundred twelve".