512002345 has 8 divisors (see below), whose sum is σ = 650544264. Its totient is φ = 385507584.

The previous prime is 512002343. The next prime is 512002357. The reversal of 512002345 is 543200215.

It can be written as a sum of positive squares in 4 ways, for example, as 146313216 + 365689129 = 12096^2 + 19123^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 512002345 - 2¹ = 512002343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512002343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3011694 + ... + 3011863.

It is an arithmetic number, because the mean of its divisors is an integer number (81318033).

Almost surely, 2^512002345 is an apocalyptic number.

It is an amenable number.

512002345 is a deficient number, since it is larger than the sum of its proper divisors (138541919).

512002345 is a wasteful number, since it uses less digits than its factorization.

512002345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6023579.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 512002345 is about 22627.4688155790. The cubic root of 512002345 is about 800.0012213523.

The spelling of 512002345 in words is "five hundred twelve million, two thousand, three hundred forty-five".