128053131 has 4 divisors (see below), whose sum is σ = 170737512. Its totient is φ = 85368752.

The previous prime is 128053087. The next prime is 128053171. The reversal of 128053131 is 131350821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128053131 - 2¹¹ = 128051083 is a prime.

It is a super-2 number, since 2×128053131² = 32795208717806322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128053171) 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, 21342186 + ... + 21342191.

It is an arithmetic number, because the mean of its divisors is an integer number (42684378).

Almost surely, 2^128053131 is an apocalyptic number.

128053131 is a deficient number, since it is larger than the sum of its proper divisors (42684381).

128053131 is an equidigital number, since it uses as much as digits as its factorization.

128053131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42684380.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 128053131 is about 11316.0563360210. The cubic root of 128053131 is about 504.0381403802.

The spelling of 128053131 in words is "one hundred twenty-eight million, fifty-three thousand, one hundred thirty-one".