345542515 has 4 divisors (see below), whose sum is σ = 414651024. Its totient is φ = 276434008.

The previous prime is 345542471. The next prime is 345542521. The reversal of 345542515 is 515245543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345542515 - 2¹⁹ = 345018227 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34554247 + ... + 34554256.

It is an arithmetic number, because the mean of its divisors is an integer number (103662756).

Almost surely, 2^345542515 is an apocalyptic number.

345542515 is a deficient number, since it is larger than the sum of its proper divisors (69108509).

345542515 is an equidigital number, since it uses as much as digits as its factorization.

345542515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69108508.

The product of its digits is 60000, while the sum is 34.

The square root of 345542515 is about 18588.7738971671. The cubic root of 345542515 is about 701.7253459488.

The spelling of 345542515 in words is "three hundred forty-five million, five hundred forty-two thousand, five hundred fifteen".