128957134 has 8 divisors (see below), whose sum is σ = 193730328. Its totient is φ = 64380360.

The previous prime is 128957119. The next prime is 128957167. The reversal of 128957134 is 431759821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47452 + ... + 50095.

It is an arithmetic number, because the mean of its divisors is an integer number (24216291).

Almost surely, 2^128957134 is an apocalyptic number.

128957134 is a deficient number, since it is larger than the sum of its proper divisors (64773194).

128957134 is an equidigital number, since it uses as much as digits as its factorization.

128957134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98210.

The product of its digits is 60480, while the sum is 40.

The square root of 128957134 is about 11355.9294643812. The cubic root of 128957134 is about 505.2214615373.

The spelling of 128957134 in words is "one hundred twenty-eight million, nine hundred fifty-seven thousand, one hundred thirty-four".