128701293 has 12 divisors (see below), whose sum is σ = 199618560. Its totient is φ = 73543512.

The previous prime is 128701291. The next prime is 128701303. The reversal of 128701293 is 392107821.

It is not a de Polignac number, because 128701293 - 2¹ = 128701291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128701291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 437613 + ... + 437906.

It is an arithmetic number, because the mean of its divisors is an integer number (16634880).

Almost surely, 2^128701293 is an apocalyptic number.

It is an amenable number.

128701293 is a deficient number, since it is larger than the sum of its proper divisors (70917267).

128701293 is an equidigital number, since it uses as much as digits as its factorization.

128701293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875536 (or 875529 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 128701293 is about 11344.6592280244. The cubic root of 128701293 is about 504.8871335517.

The spelling of 128701293 in words is "one hundred twenty-eight million, seven hundred one thousand, two hundred ninety-three".