128314029 has 4 divisors (see below), whose sum is σ = 171085376. Its totient is φ = 85542684.

The previous prime is 128314019. The next prime is 128314031. The reversal of 128314029 is 920413821.

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, and also an emirpimes, since its reverse is a distinct semiprime: 920413821 = 3 ⋅306804607.

It is a de Polignac number, because none of the positive numbers 2^k-128314029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128313987 and 128314005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128314019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21385669 + ... + 21385674.

It is an arithmetic number, because the mean of its divisors is an integer number (42771344).

Almost surely, 2^128314029 is an apocalyptic number.

It is an amenable number.

128314029 is a deficient number, since it is larger than the sum of its proper divisors (42771347).

128314029 is an equidigital number, since it uses as much as digits as its factorization.

128314029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42771346.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 128314029 is about 11327.5782495642. The cubic root of 128314029 is about 504.3802206142.

The spelling of 128314029 in words is "one hundred twenty-eight million, three hundred fourteen thousand, twenty-nine".