105212425 has 12 divisors (see below), whose sum is σ = 131268880. Its totient is φ = 83650320.

The previous prime is 105212383. The next prime is 105212479. The reversal of 105212425 is 524212501.

It is not a de Polignac number, because 105212425 - 2¹¹ = 105210377 is a prime.

It is a super-2 number, since 2×105212425² = 22139308748761250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105212396 and 105212405.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 8835 + ... + 16984.

Almost surely, 2^105212425 is an apocalyptic number.

It is an amenable number.

105212425 is a deficient number, since it is larger than the sum of its proper divisors (26056455).

105212425 is a wasteful number, since it uses less digits than its factorization.

105212425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25992 (or 25987 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 105212425 is about 10257.3108074193. The cubic root of 105212425 is about 472.0873285343.

Adding to 105212425 its reverse (524212501), we get a palindrome (629424926).

The spelling of 105212425 in words is "one hundred five million, two hundred twelve thousand, four hundred twenty-five".