157128384 has 56 divisors (see below), whose sum is σ = 475130368. Its totient is φ = 44893440.

The previous prime is 157128383. The next prime is 157128401. The reversal of 157128384 is 483821751.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (157128383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57112 + ... + 59799.

Almost surely, 2^157128384 is an apocalyptic number.

157128384 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

157128384 is an abundant number, since it is smaller than the sum of its proper divisors (318001984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157128384 is a wasteful number, since it uses less digits than its factorization.

157128384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116933 (or 116923 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 157128384 is about 12535.0861185713. The cubic root of 157128384 is about 539.6160782753.

The spelling of 157128384 in words is "one hundred fifty-seven million, one hundred twenty-eight thousand, three hundred eighty-four".