105405122 has 8 divisors (see below), whose sum is σ = 166429200. Its totient is φ = 49928724.

The previous prime is 105405121. The next prime is 105405149. The reversal of 105405122 is 221504501.

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

It is a super-2 number, since 2×105405122² = 22220479487669768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105405094 and 105405103.

It is not an unprimeable number, because it can be changed into a prime (105405121) 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 3 ways as a sum of consecutive naturals, for example, 1386872 + ... + 1386947.

It is an arithmetic number, because the mean of its divisors is an integer number (20803650).

Almost surely, 2^105405122 is an apocalyptic number.

105405122 is a deficient number, since it is larger than the sum of its proper divisors (61024078).

105405122 is a wasteful number, since it uses less digits than its factorization.

105405122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2773840.

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

The square root of 105405122 is about 10266.6996644491. The cubic root of 105405122 is about 472.3753627380.

Adding to 105405122 its reverse (221504501), we get a palindrome (326909623).

The spelling of 105405122 in words is "one hundred five million, four hundred five thousand, one hundred twenty-two".