105220154 has 16 divisors (see below), whose sum is σ = 172368000. Its totient is φ = 47878320.

The previous prime is 105220153. The next prime is 105220177. The reversal of 105220154 is 451022501.

It is a super-2 number, since 2×105220154² = 22142561615567432, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (105220151) by changing a digit.

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, 26654 + ... + 30345.

It is an arithmetic number, because the mean of its divisors is an integer number (10773000).

Almost surely, 2^105220154 is an apocalyptic number.

105220154 is a deficient number, since it is larger than the sum of its proper divisors (67147846).

105220154 is a wasteful number, since it uses less digits than its factorization.

105220154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57085.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 105220154 is about 10257.6875561698. The cubic root of 105220154 is about 472.0988882387.

Adding to 105220154 its reverse (451022501), we get a palindrome (556242655).

The spelling of 105220154 in words is "one hundred five million, two hundred twenty thousand, one hundred fifty-four".