128942053 has 4 divisors (see below), whose sum is σ = 128999520. Its totient is φ = 128884588.

The previous prime is 128942041. The next prime is 128942069. The reversal of 128942053 is 350249821.

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 128942053 - 2⁹ = 128941541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128942083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25225 + ... + 29902.

It is an arithmetic number, because the mean of its divisors is an integer number (32249880).

Almost surely, 2^128942053 is an apocalyptic number.

It is an amenable number.

128942053 is a deficient number, since it is larger than the sum of its proper divisors (57467).

128942053 is an equidigital number, since it uses as much as digits as its factorization.

128942053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57466.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 128942053 is about 11355.2654306273. The cubic root of 128942053 is about 505.2017662539.

The spelling of 128942053 in words is "one hundred twenty-eight million, nine hundred forty-two thousand, fifty-three".