128747014 has 16 divisors (see below), whose sum is σ = 211352976. Its totient is φ = 58333600.

The previous prime is 128747009. The next prime is 128747039. The reversal of 128747014 is 410747821.

It is a super-4 number, since 4×128747014⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2257 + ... + 16204.

It is an arithmetic number, because the mean of its divisors is an integer number (13209561).

Almost surely, 2^128747014 is an apocalyptic number.

128747014 is a deficient number, since it is larger than the sum of its proper divisors (82605962).

128747014 is a wasteful number, since it uses less digits than its factorization.

128747014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18791.

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 128747014 is about 11346.6741382662. The cubic root of 128747014 is about 504.9469133491.

The spelling of 128747014 in words is "one hundred twenty-eight million, seven hundred forty-seven thousand, fourteen".