105232531 has 4 divisors (see below), whose sum is σ = 105624000. Its totient is φ = 104841064.

The previous prime is 105232511. The next prime is 105232537. The reversal of 105232531 is 135232501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105232531 - 2¹⁵ = 105199763 is a prime.

It is a super-2 number, since 2×105232531² = 22147771161331922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105232537) 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, 195331 + ... + 195868.

It is an arithmetic number, because the mean of its divisors is an integer number (26406000).

Almost surely, 2^105232531 is an apocalyptic number.

105232531 is a deficient number, since it is larger than the sum of its proper divisors (391469).

105232531 is an equidigital number, since it uses as much as digits as its factorization.

105232531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391468.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 105232531 is about 10258.2908420458. The cubic root of 105232531 is about 472.1173984405.

The spelling of 105232531 in words is "one hundred five million, two hundred thirty-two thousand, five hundred thirty-one".