128350554 has 16 divisors (see below), whose sum is σ = 256954080. Its totient is φ = 42741360.

The previous prime is 128350517. The next prime is 128350559. The reversal of 128350554 is 455053821.

It is not an unprimeable number, because it can be changed into a prime (128350559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3592 + ... + 16419.

It is an arithmetic number, because the mean of its divisors is an integer number (16059630).

Almost surely, 2^128350554 is an apocalyptic number.

128350554 is an abundant number, since it is smaller than the sum of its proper divisors (128603526).

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

128350554 is a wasteful number, since it uses less digits than its factorization.

128350554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21085.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 128350554 is about 11329.1903505943. The cubic root of 128350554 is about 504.4280738900.

The spelling of 128350554 in words is "one hundred twenty-eight million, three hundred fifty thousand, five hundred fifty-four".