128954735 has 48 divisors (see below), whose sum is σ = 197835456. Its totient is φ = 78575616.

The previous prime is 128954713. The next prime is 128954743. The reversal of 128954735 is 537459821.

It is not a de Polignac number, because 128954735 - 2⁸ = 128954479 is a prime.

Its product of digits (302400) is a multiple of the sum of its prime factors (420).

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 47 ways as a sum of consecutive naturals, for example, 382487 + ... + 382823.

It is an arithmetic number, because the mean of its divisors is an integer number (4121572).

Almost surely, 2^128954735 is an apocalyptic number.

128954735 is a deficient number, since it is larger than the sum of its proper divisors (68880721).

128954735 is a wasteful number, since it uses less digits than its factorization.

128954735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 391 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The square root of 128954735 is about 11355.8238362525. The cubic root of 128954735 is about 505.2183286259.

The spelling of 128954735 in words is "one hundred twenty-eight million, nine hundred fifty-four thousand, seven hundred thirty-five".