105812505285 has 8 divisors (see below), whose sum is σ = 169300008480. Its totient is φ = 56433336144.

The previous prime is 105812505269. The next prime is 105812505343. The reversal of 105812505285 is 582505218501.

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

It is not a de Polignac number, because 105812505285 - 2⁴ = 105812505269 is a prime.

It is a super-2 number, since 2×105812505285² (a number of 23 digits) contains 22 as substring.

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, 3527083495 + ... + 3527083524.

It is an arithmetic number, because the mean of its divisors is an integer number (21162501060).

Almost surely, 2^105812505285 is an apocalyptic number.

105812505285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105812505285 is a deficient number, since it is larger than the sum of its proper divisors (63487503195).

105812505285 is an equidigital number, since it uses as much as digits as its factorization.

105812505285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7054167027.

The product of its (nonzero) digits is 160000, while the sum is 42.

The spelling of 105812505285 in words is "one hundred five billion, eight hundred twelve million, five hundred five thousand, two hundred eighty-five".