105235531 has 4 divisors (see below), whose sum is σ = 105607672. Its totient is φ = 104863392.

The previous prime is 105235517. The next prime is 105235541. The reversal of 105235531 is 135532501.

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 105235531 - 2²³ = 96846923 is a prime.

It is a super-2 number, since 2×105235531² = 22149033969703922, 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 = 105235496 and 105235505.

It is not an unprimeable number, because it can be changed into a prime (105235541) 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, 185646 + ... + 186211.

It is an arithmetic number, because the mean of its divisors is an integer number (26401918).

Almost surely, 2^105235531 is an apocalyptic number.

105235531 is a deficient number, since it is larger than the sum of its proper divisors (372141).

105235531 is an equidigital number, since it uses as much as digits as its factorization.

105235531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372140.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 105235531 is about 10258.4370641926. The cubic root of 105235531 is about 472.1218848185.

The spelling of 105235531 in words is "one hundred five million, two hundred thirty-five thousand, five hundred thirty-one".