128068157 has 8 divisors (see below), whose sum is σ = 154973376. Its totient is φ = 103315392.

The previous prime is 128068141. The next prime is 128068159. The reversal of 128068157 is 751860821.

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

It is not a de Polignac number, because 128068157 - 2⁴ = 128068141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128068157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128068159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537983 + ... + 538220.

It is an arithmetic number, because the mean of its divisors is an integer number (19371672).

Almost surely, 2^128068157 is an apocalyptic number.

128068157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

128068157 is a deficient number, since it is larger than the sum of its proper divisors (26905219).

128068157 is a wasteful number, since it uses less digits than its factorization.

128068157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076227.

The product of its (nonzero) digits is 26880, while the sum is 38.

The square root of 128068157 is about 11316.7202404230. The cubic root of 128068157 is about 504.0578545432.

The spelling of 128068157 in words is "one hundred twenty-eight million, sixty-eight thousand, one hundred fifty-seven".