108312345 has 12 divisors (see below), whose sum is σ = 187741476. Its totient is φ = 57766560.

The previous prime is 108312301. The next prime is 108312349. The reversal of 108312345 is 543213801.

It is a happy number.

108312345 is a `hidden beast` number, since 1 + 0 + 8 + 312 + 345 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18896409 + 89415936 = 4347^2 + 9456^2 .

It is not a de Polignac number, because 108312345 - 2¹³ = 108304153 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (108312349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1203426 + ... + 1203515.

It is an arithmetic number, because the mean of its divisors is an integer number (15645123).

Almost surely, 2^108312345 is an apocalyptic number.

108312345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

108312345 is a deficient number, since it is larger than the sum of its proper divisors (79429131).

108312345 is a wasteful number, since it uses less digits than its factorization.

108312345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406952 (or 2406949 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 108312345 is about 10407.3217015714. The cubic root of 108312345 is about 476.6789633376.

The spelling of 108312345 in words is "one hundred eight million, three hundred twelve thousand, three hundred forty-five".