128105733 has 32 divisors (see below), whose sum is σ = 212131840. Its totient is φ = 67106880.

The previous prime is 128105713. The next prime is 128105737. The reversal of 128105733 is 337501821.

It is not a de Polignac number, because 128105733 - 2⁵ = 128105701 is a prime.

It is a super-2 number, since 2×128105733² = 32822157654934578, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128105733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128105737) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7191 + ... + 17547.

It is an arithmetic number, because the mean of its divisors is an integer number (6629120).

Almost surely, 2^128105733 is an apocalyptic number.

It is an amenable number.

128105733 is a deficient number, since it is larger than the sum of its proper divisors (84026107).

128105733 is a wasteful number, since it uses less digits than its factorization.

128105733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10417.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 128105733 is about 11318.3803169888. The cubic root of 128105733 is about 504.1071476338.

The spelling of 128105733 in words is "one hundred twenty-eight million, one hundred five thousand, seven hundred thirty-three".