105240133 has 4 divisors (see below), whose sum is σ = 108635008. Its totient is φ = 101845260.

The previous prime is 105240131. The next prime is 105240169. The reversal of 105240133 is 331042501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 331042501 = 389 ⋅851009.

It is a cyclic number.

It is not a de Polignac number, because 105240133 - 2¹ = 105240131 is a prime.

It is a super-2 number, since 2×105240133² = 22150971187715378, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105240133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105240131) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1697391 + ... + 1697452.

It is an arithmetic number, because the mean of its divisors is an integer number (27158752).

Almost surely, 2^105240133 is an apocalyptic number.

It is an amenable number.

105240133 is a deficient number, since it is larger than the sum of its proper divisors (3394875).

105240133 is an equidigital number, since it uses as much as digits as its factorization.

105240133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3394874.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 105240133 is about 10258.6613649150. The cubic root of 105240133 is about 472.1287667567.

Adding to 105240133 its reverse (331042501), we get a palindrome (436282634).

The spelling of 105240133 in words is "one hundred five million, two hundred forty thousand, one hundred thirty-three".