105640235 has 8 divisors (see below), whose sum is σ = 127183056. Its totient is φ = 84235680.

The previous prime is 105640211. The next prime is 105640237. The reversal of 105640235 is 532046501.

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

It is not a de Polignac number, because 105640235 - 2¹⁰ = 105639211 is a prime.

It is a super-2 number, since 2×105640235² = 22319718501710450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105640237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32876 + ... + 35945.

It is an arithmetic number, because the mean of its divisors is an integer number (15897882).

Almost surely, 2^105640235 is an apocalyptic number.

105640235 is a deficient number, since it is larger than the sum of its proper divisors (21542821).

105640235 is an equidigital number, since it uses as much as digits as its factorization.

105640235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69133.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 105640235 is about 10278.1435580556. The cubic root of 105640235 is about 472.7263232734.

Adding to 105640235 its reverse (532046501), we get a palindrome (637686736).

The spelling of 105640235 in words is "one hundred five million, six hundred forty thousand, two hundred thirty-five".