345542215 has 16 divisors (see below), whose sum is σ = 421476768. Its totient is φ = 271904256.

The previous prime is 345542147. The next prime is 345542243. The reversal of 345542215 is 512245543.

It is a cyclic number.

It is not a de Polignac number, because 345542215 - 2¹⁵ = 345509447 is a prime.

It is a Duffinian number.

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 in 15 ways as a sum of consecutive naturals, for example, 160627 + ... + 162763.

It is an arithmetic number, because the mean of its divisors is an integer number (26342298).

Almost surely, 2^345542215 is an apocalyptic number.

345542215 is a deficient number, since it is larger than the sum of its proper divisors (75934553).

345542215 is a wasteful number, since it uses less digits than its factorization.

345542215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658.

The product of its digits is 24000, while the sum is 31.

The square root of 345542215 is about 18588.7658277789. The cubic root of 345542215 is about 701.7251428695.

Adding to 345542215 its reverse (512245543), we get a palindrome (857787758).

The spelling of 345542215 in words is "three hundred forty-five million, five hundred forty-two thousand, two hundred fifteen".