105728351 has 16 divisors (see below), whose sum is σ = 111273120. Its totient is φ = 100362240.

The previous prime is 105728347. The next prime is 105728377. The reversal of 105728351 is 153827501.

It is a cyclic number.

It is not a de Polignac number, because 105728351 - 2² = 105728347 is a prime.

It is a super-2 number, since 2×105728351² = 22356968410358402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105728251) 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, 319256 + ... + 319586.

It is an arithmetic number, because the mean of its divisors is an integer number (6954570).

Almost surely, 2^105728351 is an apocalyptic number.

105728351 is a deficient number, since it is larger than the sum of its proper divisors (5544769).

105728351 is an equidigital number, since it uses as much as digits as its factorization.

105728351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 105728351 is about 10282.4292363235. The cubic root of 105728351 is about 472.8577226291.

The spelling of 105728351 in words is "one hundred five million, seven hundred twenty-eight thousand, three hundred fifty-one".