105623146 has 8 divisors (see below), whose sum is σ = 158570244. Its totient is φ = 52766400.

The previous prime is 105623143. The next prime is 105623149. The reversal of 105623146 is 641326501.

It is an interprime number because it is at equal distance from previous prime (105623143) and next prime (105623149).

It can be written as a sum of positive squares in 2 ways, for example, as 90992521 + 14630625 = 9539^2 + 3825^2 .

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

It is a super-2 number, since 2×105623146² = 22312497941874632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105623143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19585 + ... + 24388.

Almost surely, 2^105623146 is an apocalyptic number.

105623146 is a deficient number, since it is larger than the sum of its proper divisors (52947098).

105623146 is a wasteful number, since it uses less digits than its factorization.

105623146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45176.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 105623146 is about 10277.3121972625. The cubic root of 105623146 is about 472.7008315474.

Adding to 105623146 its reverse (641326501), we get a palindrome (746949647).

The spelling of 105623146 in words is "one hundred five million, six hundred twenty-three thousand, one hundred forty-six".