105156207 has 36 divisors (see below), whose sum is σ = 171098200. Its totient is φ = 61861536.

The previous prime is 105156197. The next prime is 105156209. The reversal of 105156207 is 702651501.

It is not a de Polignac number, because 105156207 - 2¹² = 105152111 is a prime.

It is a super-2 number, since 2×105156207² = 22115655741253698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105156209) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 61044 + ... + 62742.

Almost surely, 2^105156207 is an apocalyptic number.

105156207 is a deficient number, since it is larger than the sum of its proper divisors (65941993).

105156207 is a wasteful number, since it uses less digits than its factorization.

105156207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764 (or 1738 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 105156207 is about 10254.5700543709. The cubic root of 105156207 is about 472.0032303116.

The spelling of 105156207 in words is "one hundred five million, one hundred fifty-six thousand, two hundred seven".