105520233 has 16 divisors (see below), whose sum is σ = 173161856. Its totient is φ = 55658880.

The previous prime is 105520231. The next prime is 105520267. The reversal of 105520233 is 332025501.

It is not a de Polignac number, because 105520233 - 2¹ = 105520231 is a prime.

It is a super-2 number, since 2×105520233² = 22269039144748578, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (105520231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192988 + ... + 193533.

It is an arithmetic number, because the mean of its divisors is an integer number (10822616).

Almost surely, 2^105520233 is an apocalyptic number.

105520233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

105520233 is a deficient number, since it is larger than the sum of its proper divisors (67641623).

105520233 is a wasteful number, since it uses less digits than its factorization.

105520233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386544.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 105520233 is about 10272.3041718983. The cubic root of 105520233 is about 472.5472576680.

Adding to 105520233 its reverse (332025501), we get a palindrome (437545734).

The spelling of 105520233 in words is "one hundred five million, five hundred twenty thousand, two hundred thirty-three".