105128229 has 8 divisors (see below), whose sum is σ = 140344992. Its totient is φ = 69998480.

The previous prime is 105128207. The next prime is 105128267. The reversal of 105128229 is 922821501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105128229 - 2⁸ = 105127973 is a prime.

It is a super-2 number, since 2×105128229² = 22103889065352882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105128196 and 105128205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105128329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18879 + ... + 23804.

It is an arithmetic number, because the mean of its divisors is an integer number (17543124).

Almost surely, 2^105128229 is an apocalyptic number.

It is an amenable number.

105128229 is a deficient number, since it is larger than the sum of its proper divisors (35216763).

105128229 is an equidigital number, since it uses as much as digits as its factorization.

105128229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43507.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 105128229 is about 10253.2057913611. The cubic root of 105128229 is about 471.9613659966.

The spelling of 105128229 in words is "one hundred five million, one hundred twenty-eight thousand, two hundred twenty-nine".