207105345 has 12 divisors (see below), whose sum is σ = 358982676. Its totient is φ = 110456160.

The previous prime is 207105337. The next prime is 207105361. The reversal of 207105345 is 543501702.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 43086096 + 164019249 = 6564^2 + 12807^2 .

It is not a de Polignac number, because 207105345 - 2³ = 207105337 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2301126 + ... + 2301215.

It is an arithmetic number, because the mean of its divisors is an integer number (29915223).

Almost surely, 2^207105345 is an apocalyptic number.

It is an amenable number.

207105345 is a deficient number, since it is larger than the sum of its proper divisors (151877331).

207105345 is a wasteful number, since it uses less digits than its factorization.

207105345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4602352 (or 4602349 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 207105345 is about 14391.1550960998. The cubic root of 207105345 is about 591.6485018118.

The spelling of 207105345 in words is "two hundred seven million, one hundred five thousand, three hundred forty-five".