128741746 has 8 divisors (see below), whose sum is σ = 220700160. Its totient is φ = 55175028.

The previous prime is 128741737. The next prime is 128741779. The reversal of 128741746 is 647147821.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 128741699 and 128741708.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4597906 + ... + 4597933.

It is an arithmetic number, because the mean of its divisors is an integer number (27587520).

Almost surely, 2^128741746 is an apocalyptic number.

128741746 is a deficient number, since it is larger than the sum of its proper divisors (91958414).

128741746 is an equidigital number, since it uses as much as digits as its factorization.

128741746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9195848.

The product of its digits is 75264, while the sum is 40.

The square root of 128741746 is about 11346.4419973840. The cubic root of 128741746 is about 504.9400262079.

The spelling of 128741746 in words is "one hundred twenty-eight million, seven hundred forty-one thousand, seven hundred forty-six".