345199521 has 8 divisors (see below), whose sum is σ = 463022784. Its totient is φ = 228754640.

The previous prime is 345199513. The next prime is 345199567. The reversal of 345199521 is 125991543.

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 345199521 - 2³ = 345199513 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 345199521.

It is not an unprimeable number, because it can be changed into a prime (345199021) 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 7 ways as a sum of consecutive naturals, for example, 344010 + ... + 345011.

It is an arithmetic number, because the mean of its divisors is an integer number (57877848).

Almost surely, 2^345199521 is an apocalyptic number.

It is an amenable number.

345199521 is a deficient number, since it is larger than the sum of its proper divisors (117823263).

345199521 is a wasteful number, since it uses less digits than its factorization.

345199521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689191.

The product of its digits is 48600, while the sum is 39.

The square root of 345199521 is about 18579.5457694746. The cubic root of 345199521 is about 701.4930858031.

The spelling of 345199521 in words is "three hundred forty-five million, one hundred ninety-nine thousand, five hundred twenty-one".