105310531 has 4 divisors (see below), whose sum is σ = 105475464. Its totient is φ = 105145600.

The previous prime is 105310501. The next prime is 105310553. The reversal of 105310531 is 135013501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135013501 = 7 ⋅19287643.

It is a cyclic number.

It is not a de Polignac number, because 105310531 - 2¹⁹ = 104786243 is a prime.

It is a super-2 number, since 2×105310531² = 22180615879003922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105310499 and 105310508.

It is not an unprimeable number, because it can be changed into a prime (105310501) 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, 81505 + ... + 82786.

It is an arithmetic number, because the mean of its divisors is an integer number (26368866).

Almost surely, 2^105310531 is an apocalyptic number.

105310531 is a deficient number, since it is larger than the sum of its proper divisors (164933).

105310531 is an equidigital number, since it uses as much as digits as its factorization.

105310531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164932.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 105310531 is about 10262.0919407302. The cubic root of 105310531 is about 472.2340165687.

The spelling of 105310531 in words is "one hundred five million, three hundred ten thousand, five hundred thirty-one".