128459349 has 24 divisors (see below), whose sum is σ = 188697600. Its totient is φ = 84198912.

The previous prime is 128459339. The next prime is 128459369. The reversal of 128459349 is 943954821.

128459349 is a `hidden beast` number, since 12 + 8 + 4 + 593 + 49 = 666.

It is not a de Polignac number, because 128459349 - 2¹⁵ = 128426581 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128459329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 285877 + ... + 286325.

It is an arithmetic number, because the mean of its divisors is an integer number (7862400).

Almost surely, 2^128459349 is an apocalyptic number.

It is an amenable number.

128459349 is a deficient number, since it is larger than the sum of its proper divisors (60238251).

128459349 is a wasteful number, since it uses less digits than its factorization.

128459349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 918 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 128459349 is about 11333.9908681805. The cubic root of 128459349 is about 504.5705580267.

The spelling of 128459349 in words is "one hundred twenty-eight million, four hundred fifty-nine thousand, three hundred forty-nine".