105920426 has 4 divisors (see below), whose sum is σ = 158880642. Its totient is φ = 52960212.

The previous prime is 105920407. The next prime is 105920449. The reversal of 105920426 is 624029501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624029501 = 1297 ⋅481133.

It can be written as a sum of positive squares in only one way, i.e., 74839801 + 31080625 = 8651^2 + 5575^2 .

It is a super-2 number, since 2×105920426² = 22438273288042952, which contains 22 as substring.

It is an unprimeable number.

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, 26480105 + ... + 26480108.

Almost surely, 2^105920426 is an apocalyptic number.

105920426 is a deficient number, since it is larger than the sum of its proper divisors (52960216).

105920426 is an equidigital number, since it uses as much as digits as its factorization.

105920426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52960215.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 105920426 is about 10291.7649603943. The cubic root of 105920426 is about 473.1438937525.

Adding to 105920426 its reverse (624029501), we get a palindrome (729949927).

The spelling of 105920426 in words is "one hundred five million, nine hundred twenty thousand, four hundred twenty-six".