105781226 has 4 divisors (see below), whose sum is σ = 158671842. Its totient is φ = 52890612.

The previous prime is 105781219. The next prime is 105781289. The reversal of 105781226 is 622187501.

It is a Cunningham number, because it is equal to 10285²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 622187501 = 13 ⋅47860577.

It can be written as a sum of positive squares in only one way, i.e., 105781225 + 1 = 10285^2 + 1^2 .

It is a super-2 number, since 2×105781226² = 22379335548126152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105781192 and 105781201.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26445305 + ... + 26445308.

Almost surely, 2^105781226 is an apocalyptic number.

105781226 is a deficient number, since it is larger than the sum of its proper divisors (52890616).

105781226 is an equidigital number, since it uses as much as digits as its factorization.

105781226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52890615.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 105781226 is about 10285.0000486145. Note that the first 4 decimals coincide. The cubic root of 105781226 is about 472.9365352500.

The spelling of 105781226 in words is "one hundred five million, seven hundred eighty-one thousand, two hundred twenty-six".