105745215 has 8 divisors (see below), whose sum is σ = 169192368. Its totient is φ = 56397440.

The previous prime is 105745201. The next prime is 105745243. The reversal of 105745215 is 512547501.

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

It is not a de Polignac number, because 105745215 - 2⁵ = 105745183 is a prime.

It is a super-2 number, since 2×105745215² = 22364100990792450, which 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, 3524826 + ... + 3524855.

It is an arithmetic number, because the mean of its divisors is an integer number (21149046).

Almost surely, 2^105745215 is an apocalyptic number.

105745215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

105745215 is a deficient number, since it is larger than the sum of its proper divisors (63447153).

105745215 is an equidigital number, since it uses as much as digits as its factorization.

105745215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7049689.

The product of its (nonzero) digits is 7000, while the sum is 30.

The square root of 105745215 is about 10283.2492433083. The cubic root of 105745215 is about 472.8828620505.

The spelling of 105745215 in words is "one hundred five million, seven hundred forty-five thousand, two hundred fifteen".