105220615 has 8 divisors (see below), whose sum is σ = 127069920. Its totient is φ = 83639712.

The previous prime is 105220589. The next prime is 105220627. The reversal of 105220615 is 516022501.

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

It is a cyclic number.

It is not a de Polignac number, because 105220615 - 2⁹ = 105220103 is a prime.

It is a super-2 number, since 2×105220615² = 22142755641956450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66235 + ... + 67804.

It is an arithmetic number, because the mean of its divisors is an integer number (15883740).

Almost surely, 2^105220615 is an apocalyptic number.

105220615 is a deficient number, since it is larger than the sum of its proper divisors (21849305).

105220615 is a wasteful number, since it uses less digits than its factorization.

105220615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134201.

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

The square root of 105220615 is about 10257.7100270967. The cubic root of 105220615 is about 472.0995777051.

The spelling of 105220615 in words is "one hundred five million, two hundred twenty thousand, six hundred fifteen".