119128729 has 4 divisors (see below), whose sum is σ = 121147920. Its totient is φ = 117109540.

The previous prime is 119128721. The next prime is 119128769. The reversal of 119128729 is 927821911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 119128729 - 2³ = 119128721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 119128691 and 119128700.

It is not an unprimeable number, because it can be changed into a prime (119128721) 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 3 ways as a sum of consecutive naturals, for example, 1009507 + ... + 1009624.

It is an arithmetic number, because the mean of its divisors is an integer number (30286980).

Almost surely, 2^119128729 is an apocalyptic number.

It is an amenable number.

119128729 is a deficient number, since it is larger than the sum of its proper divisors (2019191).

119128729 is an equidigital number, since it uses as much as digits as its factorization.

119128729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019190.

The product of its digits is 18144, while the sum is 40.

The square root of 119128729 is about 10914.6108038720. The cubic root of 119128729 is about 492.0457701377.

The spelling of 119128729 in words is "one hundred nineteen million, one hundred twenty-eight thousand, seven hundred twenty-nine".