128157294 has 8 divisors (see below), whose sum is σ = 256314600. Its totient is φ = 42719096.

The previous prime is 128157277. The next prime is 128157301. The reversal of 128157294 is 492751821.

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

128157294 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10679769 + ... + 10679780.

It is an arithmetic number, because the mean of its divisors is an integer number (32039325).

Almost surely, 2^128157294 is an apocalyptic number.

128157294 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128157294 is a wasteful number, since it uses less digits than its factorization.

128157294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21359554.

The product of its digits is 40320, while the sum is 39.

The square root of 128157294 is about 11320.6578430761. The cubic root of 128157294 is about 504.1747708948.

The spelling of 128157294 in words is "one hundred twenty-eight million, one hundred fifty-seven thousand, two hundred ninety-four".