105443402 has 4 divisors (see below), whose sum is σ = 158165106. Its totient is φ = 52721700.

The previous prime is 105443363. The next prime is 105443411. The reversal of 105443402 is 204344501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 204344501 = 809 ⋅252589.

It can be written as a sum of positive squares in only one way, i.e., 58507201 + 46936201 = 7649^2 + 6851^2 .

It is a super-2 number, since 2×105443402² = 22236622050667208, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 26360849 + ... + 26360852.

Almost surely, 2^105443402 is an apocalyptic number.

105443402 is a deficient number, since it is larger than the sum of its proper divisors (52721704).

105443402 is an equidigital number, since it uses as much as digits as its factorization.

105443402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52721703.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 105443402 is about 10268.5637749395. The cubic root of 105443402 is about 472.4325400364.

Adding to 105443402 its reverse (204344501), we get a palindrome (309787903).

The spelling of 105443402 in words is "one hundred five million, four hundred forty-three thousand, four hundred two".