105532891 has 4 divisors (see below), whose sum is σ = 105571384. Its totient is φ = 105494400.

The previous prime is 105532877. The next prime is 105532913. The reversal of 105532891 is 198235501.

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 105532891 - 2¹⁵ = 105500123 is a prime.

It is a super-2 number, since 2×105532891² = 22274382165635762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105532841) 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, 14790 + ... + 20731.

It is an arithmetic number, because the mean of its divisors is an integer number (26392846).

Almost surely, 2^105532891 is an apocalyptic number.

105532891 is a deficient number, since it is larger than the sum of its proper divisors (38493).

105532891 is an equidigital number, since it uses as much as digits as its factorization.

105532891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38492.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 105532891 is about 10272.9202761435. The cubic root of 105532891 is about 472.5661521929.

The spelling of 105532891 in words is "one hundred five million, five hundred thirty-two thousand, eight hundred ninety-one".