105165155 has 8 divisors (see below), whose sum is σ = 126973392. Its totient is φ = 83615328.

The previous prime is 105165149. The next prime is 105165157. The reversal of 105165155 is 551561501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105165155 - 2¹⁰ = 105164131 is a prime.

It is a super-2 number, since 2×105165155² = 22119419652348050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105165157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63704 + ... + 65333.

It is an arithmetic number, because the mean of its divisors is an integer number (15871674).

Almost surely, 2^105165155 is an apocalyptic number.

105165155 is a deficient number, since it is larger than the sum of its proper divisors (21808237).

105165155 is a wasteful number, since it uses less digits than its factorization.

105165155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129205.

The product of its (nonzero) digits is 3750, while the sum is 29.

The square root of 105165155 is about 10255.0063383696. The cubic root of 105165155 is about 472.0166179034.

The spelling of 105165155 in words is "one hundred five million, one hundred sixty-five thousand, one hundred fifty-five".