128540414 has 8 divisors (see below), whose sum is σ = 193618080. Its totient is φ = 64001056.

The previous prime is 128540407. The next prime is 128540431. The reversal of 128540414 is 414045821.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133979 + ... + 134934.

It is an arithmetic number, because the mean of its divisors is an integer number (24202260).

Almost surely, 2^128540414 is an apocalyptic number.

128540414 is a deficient number, since it is larger than the sum of its proper divisors (65077666).

128540414 is a wasteful number, since it uses less digits than its factorization.

128540414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269154.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 128540414 is about 11337.5664937411. The cubic root of 128540414 is about 504.6766730781.

The spelling of 128540414 in words is "one hundred twenty-eight million, five hundred forty thousand, four hundred fourteen".