345122012 has 12 divisors (see below), whose sum is σ = 604094400. Its totient is φ = 172523616.

The previous prime is 345122003. The next prime is 345122017. The reversal of 345122012 is 210221543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345122017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27989 + ... + 38387.

It is an arithmetic number, because the mean of its divisors is an integer number (50341200).

Almost surely, 2^345122012 is an apocalyptic number.

It is an amenable number.

345122012 is a deficient number, since it is larger than the sum of its proper divisors (258972388).

345122012 is a wasteful number, since it uses less digits than its factorization.

345122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18700 (or 18698 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 345122012 is about 18577.4597832965. The cubic root of 345122012 is about 701.4405788766.

Adding to 345122012 its reverse (210221543), we get a palindrome (555343555).

The spelling of 345122012 in words is "three hundred forty-five million, one hundred twenty-two thousand, twelve".