105081815 has 8 divisors (see below), whose sum is σ = 126385488. Its totient is φ = 83873920.

The previous prime is 105081797. The next prime is 105081841. The reversal of 105081815 is 518180501.

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

It is not a de Polignac number, because 105081815 - 2²⁴ = 88304599 is a prime.

It is a super-2 number, since 2×105081815² = 22084375687388450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21506 + ... + 25935.

It is an arithmetic number, because the mean of its divisors is an integer number (15798186).

Almost surely, 2^105081815 is an apocalyptic number.

105081815 is a deficient number, since it is larger than the sum of its proper divisors (21303673).

105081815 is an equidigital number, since it uses as much as digits as its factorization.

105081815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47889.

The product of its (nonzero) digits is 1600, while the sum is 29.

The square root of 105081815 is about 10250.9421518219. The cubic root of 105081815 is about 471.8918989606.

The spelling of 105081815 in words is "one hundred five million, eighty-one thousand, eight hundred fifteen".