128735754 has 32 divisors (see below), whose sum is σ = 309742080. Its totient is φ = 34845552.

The previous prime is 128735729. The next prime is 128735797. The reversal of 128735754 is 457537821.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79864 + ... + 81459.

It is an arithmetic number, because the mean of its divisors is an integer number (9679440).

Almost surely, 2^128735754 is an apocalyptic number.

128735754 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

128735754 is an abundant number, since it is smaller than the sum of its proper divisors (181006326).

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

128735754 is a wasteful number, since it uses less digits than its factorization.

128735754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161354.

The product of its digits is 235200, while the sum is 42.

The square root of 128735754 is about 11346.1779467801. The cubic root of 128735754 is about 504.9321923139.

The spelling of 128735754 in words is "one hundred twenty-eight million, seven hundred thirty-five thousand, seven hundred fifty-four".