105209234 has 16 divisors (see below), whose sum is σ = 170674560. Its totient is φ = 48352080.

The previous prime is 105209233. The next prime is 105209249. The reversal of 105209234 is 432902501.

It is a super-2 number, since 2×105209234² = 22137965837733512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (105209233) 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 7 ways as a sum of consecutive naturals, for example, 2252 + ... + 14679.

It is an arithmetic number, because the mean of its divisors is an integer number (10667160).

Almost surely, 2^105209234 is an apocalyptic number.

105209234 is a deficient number, since it is larger than the sum of its proper divisors (65465326).

105209234 is a wasteful number, since it uses less digits than its factorization.

105209234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17185.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 105209234 is about 10257.1552586475. The cubic root of 105209234 is about 472.0825558220.

The spelling of 105209234 in words is "one hundred five million, two hundred nine thousand, two hundred thirty-four".