106312345 has 4 divisors (see below), whose sum is σ = 127574820. Its totient is φ = 85049872.

The previous prime is 106312333. The next prime is 106312357. The reversal of 106312345 is 543213601.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (106312333) and next prime (106312357).

It can be written as a sum of positive squares in 2 ways, for example, as 40182921 + 66129424 = 6339^2 + 8132^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106312345 is a prime.

It is a super-2 number, since 2×106312345² = 22604629398798050, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 10631230 + ... + 10631239.

It is an arithmetic number, because the mean of its divisors is an integer number (31893705).

Almost surely, 2^106312345 is an apocalyptic number.

It is an amenable number.

106312345 is a deficient number, since it is larger than the sum of its proper divisors (21262475).

106312345 is an equidigital number, since it uses as much as digits as its factorization.

106312345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21262474.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 106312345 is about 10310.7877972539. The cubic root of 106312345 is about 473.7267395982.

Adding to 106312345 its reverse (543213601), we get a palindrome (649525946).

The spelling of 106312345 in words is "one hundred six million, three hundred twelve thousand, three hundred forty-five".