105620215 has 8 divisors (see below), whose sum is σ = 127402128. Its totient is φ = 84057600.

The previous prime is 105620213. The next prime is 105620227. The reversal of 105620215 is 512026501.

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

It is not a de Polignac number, because 105620215 - 2¹ = 105620213 is a prime.

It is a super-2 number, since 2×105620215² = 22311259633292450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105620213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53761 + ... + 55690.

It is an arithmetic number, because the mean of its divisors is an integer number (15925266).

Almost surely, 2^105620215 is an apocalyptic number.

105620215 is a deficient number, since it is larger than the sum of its proper divisors (21781913).

105620215 is a wasteful number, since it uses less digits than its factorization.

105620215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109649.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 105620215 is about 10277.1696006245. The cubic root of 105620215 is about 472.6964590873.

Adding to 105620215 its reverse (512026501), we get a palindrome (617646716).

The spelling of 105620215 in words is "one hundred five million, six hundred twenty thousand, two hundred fifteen".