105161515 has 16 divisors (see below), whose sum is σ = 129820320. Its totient is φ = 81729280.

The previous prime is 105161489. The next prime is 105161533. The reversal of 105161515 is 515161501.

It is not a de Polignac number, because 105161515 - 2⁷ = 105161387 is a prime.

It is a super-2 number, since 2×105161515² = 22117888474190450, 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 105161515.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54192 + ... + 56098.

It is an arithmetic number, because the mean of its divisors is an integer number (8113770).

Almost surely, 2^105161515 is an apocalyptic number.

105161515 is a deficient number, since it is larger than the sum of its proper divisors (24658805).

105161515 is a wasteful number, since it uses less digits than its factorization.

105161515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222.

The product of its (nonzero) digits is 750, while the sum is 25.

The square root of 105161515 is about 10254.8288625408. The cubic root of 105161515 is about 472.0111719921.

The spelling of 105161515 in words is "one hundred five million, one hundred sixty-one thousand, five hundred fifteen".