105141815 has 4 divisors (see below), whose sum is σ = 126170184. Its totient is φ = 84113448.

The previous prime is 105141797. The next prime is 105141823. The reversal of 105141815 is 518141501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105141815 is a prime.

It is a super-2 number, since 2×105141815² = 22109602522988450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10514177 + ... + 10514186.

It is an arithmetic number, because the mean of its divisors is an integer number (31542546).

Almost surely, 2^105141815 is an apocalyptic number.

105141815 is a deficient number, since it is larger than the sum of its proper divisors (21028369).

105141815 is an equidigital number, since it uses as much as digits as its factorization.

105141815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21028368.

The product of its (nonzero) digits is 800, while the sum is 26.

The square root of 105141815 is about 10253.8682944536. The cubic root of 105141815 is about 471.9816960608.

The spelling of 105141815 in words is "one hundred five million, one hundred forty-one thousand, eight hundred fifteen".