345251512 has 8 divisors (see below), whose sum is σ = 647346600. Its totient is φ = 172625752.

The previous prime is 345251483. The next prime is 345251549. The reversal of 345251512 is 215152543.

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

It is a super-2 number, since 2×345251512² = 238397213076572288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 21578212 + ... + 21578227.

It is an arithmetic number, because the mean of its divisors is an integer number (80918325).

Almost surely, 2^345251512 is an apocalyptic number.

It is an amenable number.

345251512 is a deficient number, since it is larger than the sum of its proper divisors (302095088).

345251512 is a wasteful number, since it uses less digits than its factorization.

345251512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43156445 (or 43156441 counting only the distinct ones).

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

The square root of 345251512 is about 18580.9448629503. The cubic root of 345251512 is about 701.5283016652.

The spelling of 345251512 in words is "three hundred forty-five million, two hundred fifty-one thousand, five hundred twelve".