105315515 has 8 divisors (see below), whose sum is σ = 126936720. Its totient is φ = 83880352.

The previous prime is 105315479. The next prime is 105315517. The reversal of 105315515 is 515513501.

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 105315515 - 2⁶ = 105315451 is a prime.

It is a super-2 number, since 2×105315515² = 22182715399430450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105315517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45260 + ... + 47529.

It is an arithmetic number, because the mean of its divisors is an integer number (15867090).

Almost surely, 2^105315515 is an apocalyptic number.

105315515 is a deficient number, since it is larger than the sum of its proper divisors (21621205).

105315515 is an equidigital number, since it uses as much as digits as its factorization.

105315515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93021.

The product of its (nonzero) digits is 1875, while the sum is 26.

The square root of 105315515 is about 10262.3347733350. The cubic root of 105315515 is about 472.2414662105.

The spelling of 105315515 in words is "one hundred five million, three hundred fifteen thousand, five hundred fifteen".