105212246 has 4 divisors (see below), whose sum is σ = 157818372. Its totient is φ = 52606122.

The previous prime is 105212231. The next prime is 105212249. The reversal of 105212246 is 642212501.

It is a happy number.

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

It is a super-2 number, since 2×105212246² = 22139233416729032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105212249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26303060 + ... + 26303063.

It is an arithmetic number, because the mean of its divisors is an integer number (39454593).

Almost surely, 2^105212246 is an apocalyptic number.

105212246 is a deficient number, since it is larger than the sum of its proper divisors (52606126).

105212246 is an equidigital number, since it uses as much as digits as its factorization.

105212246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52606125.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 105212246 is about 10257.3020819317. The cubic root of 105212246 is about 472.0870608102.

Adding to 105212246 its reverse (642212501), we get a palindrome (747424747).

The spelling of 105212246 in words is "one hundred five million, two hundred twelve thousand, two hundred forty-six".