105015155 has 16 divisors (see below), whose sum is σ = 147087360. Its totient is φ = 70477152.

The previous prime is 105015151. The next prime is 105015161. The reversal of 105015155 is 551510501.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 105015155 - 2² = 105015151 is a prime.

It is a super-2 number, since 2×105015155² = 22056365559348050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105015155.

It is not an unprimeable number, because it can be changed into a prime (105015151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30275 + ... + 33564.

It is an arithmetic number, because the mean of its divisors is an integer number (9192960).

Almost surely, 2^105015155 is an apocalyptic number.

105015155 is a deficient number, since it is larger than the sum of its proper divisors (42072205).

105015155 is an equidigital number, since it uses as much as digits as its factorization.

105015155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63898.

The product of its (nonzero) digits is 625, while the sum is 23.

The square root of 105015155 is about 10247.6902275586. The cubic root of 105015155 is about 471.7920942897.

Adding to 105015155 its reverse (551510501), we get a palindrome (656525656).

The spelling of 105015155 in words is "one hundred five million, fifteen thousand, one hundred fifty-five".