345112215 has 32 divisors (see below), whose sum is σ = 632918016. Its totient is φ = 157301760.

The previous prime is 345112177. The next prime is 345112231. The reversal of 345112215 is 512211543.

It is a happy number.

It is not a de Polignac number, because 345112215 - 2¹² = 345108119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32410 + ... + 41720.

It is an arithmetic number, because the mean of its divisors is an integer number (19778688).

Almost surely, 2^345112215 is an apocalyptic number.

345112215 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

345112215 is a deficient number, since it is larger than the sum of its proper divisors (287805801).

345112215 is a wasteful number, since it uses less digits than its factorization.

345112215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9679.

The product of its digits is 1200, while the sum is 24.

The square root of 345112215 is about 18577.1961016726. The cubic root of 345112215 is about 701.4339415347.

Adding to 345112215 its reverse (512211543), we get a palindrome (857323758).

The spelling of 345112215 in words is "three hundred forty-five million, one hundred twelve thousand, two hundred fifteen".