345720112 has 20 divisors (see below), whose sum is σ = 670392360. Its totient is φ = 172715648.

The previous prime is 345720097. The next prime is 345720127. The reversal of 345720112 is 211027543.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (345720097) and next prime (345720127).

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, 12243 + ... + 29005.

It is an arithmetic number, because the mean of its divisors is an integer number (33519618).

Almost surely, 2^345720112 is an apocalyptic number.

It is an amenable number.

345720112 is a deficient number, since it is larger than the sum of its proper divisors (324672248).

345720112 is a wasteful number, since it uses less digits than its factorization.

345720112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18060 (or 18054 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 345720112 is about 18593.5502795996. The cubic root of 345720112 is about 701.8455462774.

Adding to 345720112 its reverse (211027543), we get a palindrome (556747655).

The spelling of 345720112 in words is "three hundred forty-five million, seven hundred twenty thousand, one hundred twelve".