105532145 has 4 divisors (see below), whose sum is σ = 126638580. Its totient is φ = 84425712.

The previous prime is 105532127. The next prime is 105532157. The reversal of 105532145 is 541235501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541235501 = 19 ⋅28486079.

It can be written as a sum of positive squares in 2 ways, for example, as 10975969 + 94556176 = 3313^2 + 9724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105532145 is a prime.

It is a super-2 number, since 2×105532145² = 22274067256602050, which contains 22 as substring.

It is an unprimeable number.

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, 10553210 + ... + 10553219.

It is an arithmetic number, because the mean of its divisors is an integer number (31659645).

Almost surely, 2^105532145 is an apocalyptic number.

It is an amenable number.

105532145 is a deficient number, since it is larger than the sum of its proper divisors (21106435).

105532145 is an equidigital number, since it uses as much as digits as its factorization.

105532145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21106434.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 105532145 is about 10272.8839670270. The cubic root of 105532145 is about 472.5650386849.

Adding to 105532145 its reverse (541235501), we get a palindrome (646767646).

The spelling of 105532145 in words is "one hundred five million, five hundred thirty-two thousand, one hundred forty-five".