128000157 has 8 divisors (see below), whose sum is σ = 180706176. Its totient is φ = 80313792.

The previous prime is 128000111. The next prime is 128000167. The reversal of 128000157 is 751000821.

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

It is not a de Polignac number, because 128000157 - 2⁸ = 127999901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128000167) 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, 1254853 + ... + 1254954.

It is an arithmetic number, because the mean of its divisors is an integer number (22588272).

Almost surely, 2^128000157 is an apocalyptic number.

128000157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

128000157 is a deficient number, since it is larger than the sum of its proper divisors (52706019).

128000157 is a wasteful number, since it uses less digits than its factorization.

128000157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2509827.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 128000157 is about 11313.7154374679. The cubic root of 128000157 is about 503.9686260075.

Adding to 128000157 its reverse (751000821), we get a palindrome (879000978).

The spelling of 128000157 in words is "one hundred twenty-eight million, one hundred fifty-seven", and thus it is an aban number.