105210207 has 12 divisors (see below), whose sum is σ = 155505064. Its totient is φ = 68508720.

The previous prime is 105210197. The next prime is 105210221. The reversal of 105210207 is 702012501.

It is not a de Polignac number, because 105210207 - 2⁴ = 105210191 is a prime.

It is a super-2 number, since 2×105210207² = 22138375313965698, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105210207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105210227) 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, 135544 + ... + 136317.

Almost surely, 2^105210207 is an apocalyptic number.

105210207 is a deficient number, since it is larger than the sum of its proper divisors (50294857).

105210207 is a wasteful number, since it uses less digits than its factorization.

105210207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271910 (or 271907 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 105210207 is about 10257.2026888426. The cubic root of 105210207 is about 472.0840111281.

Adding to 105210207 its reverse (702012501), we get a palindrome (807222708).

The spelling of 105210207 in words is "one hundred five million, two hundred ten thousand, two hundred seven".