105131193 has 4 divisors (see below), whose sum is σ = 140174928. Its totient is φ = 70087460.

The previous prime is 105131129. The next prime is 105131207. The reversal of 105131193 is 391131501.

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.

It is a cyclic number.

It is not a de Polignac number, because 105131193 - 2⁶ = 105131129 is a prime.

It is a super-2 number, since 2×105131193² = 22105135483206498, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (105131993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17521863 + ... + 17521868.

It is an arithmetic number, because the mean of its divisors is an integer number (35043732).

Almost surely, 2^105131193 is an apocalyptic number.

It is an amenable number.

105131193 is a deficient number, since it is larger than the sum of its proper divisors (35043735).

105131193 is an equidigital number, since it uses as much as digits as its factorization.

105131193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35043734.

The product of its (nonzero) digits is 405, while the sum is 24.

The square root of 105131193 is about 10253.3503305017. The cubic root of 105131193 is about 471.9658014698.

Adding to 105131193 its reverse (391131501), we get a palindrome (496262694).

The spelling of 105131193 in words is "one hundred five million, one hundred thirty-one thousand, one hundred ninety-three".