105512146 has 4 divisors (see below), whose sum is σ = 158268222. Its totient is φ = 52756072.

The previous prime is 105512131. The next prime is 105512167. The reversal of 105512146 is 641215501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 100781521 + 4730625 = 10039^2 + 2175^2 .

It is a super-2 number, since 2×105512146² = 22265625907050632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105512146.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26378035 + ... + 26378038.

Almost surely, 2^105512146 is an apocalyptic number.

105512146 is a deficient number, since it is larger than the sum of its proper divisors (52756076).

105512146 is an equidigital number, since it uses as much as digits as its factorization.

105512146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52756075.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 105512146 is about 10271.9105330995. The cubic root of 105512146 is about 472.5351854578.

Adding to 105512146 its reverse (641215501), we get a palindrome (746727647).

The spelling of 105512146 in words is "one hundred five million, five hundred twelve thousand, one hundred forty-six".