105200215 has 4 divisors (see below), whose sum is σ = 126240264. Its totient is φ = 84160168.

The previous prime is 105200201. The next prime is 105200237. The reversal of 105200215 is 512002501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 512002501 = 2473 ⋅207037.

It is a cyclic number.

It is not a de Polignac number, because 105200215 - 2⁷ = 105200087 is a prime.

It is a super-2 number, since 2×105200215² = 22134170472092450, 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 3 ways as a sum of consecutive naturals, for example, 10520017 + ... + 10520026.

It is an arithmetic number, because the mean of its divisors is an integer number (31560066).

Almost surely, 2^105200215 is an apocalyptic number.

105200215 is a deficient number, since it is larger than the sum of its proper divisors (21040049).

105200215 is an equidigital number, since it uses as much as digits as its factorization.

105200215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21040048.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 105200215 is about 10256.7156049098. The cubic root of 105200215 is about 472.0690657696.

Adding to 105200215 its reverse (512002501), we get a palindrome (617202716).

The spelling of 105200215 in words is "one hundred five million, two hundred thousand, two hundred fifteen".