128836144 has 10 divisors (see below), whose sum is σ = 249620060. Its totient is φ = 64418064.

The previous prime is 128836061. The next prime is 128836153. The reversal of 128836144 is 441638821.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4026114 + ... + 4026145.

It is an arithmetic number, because the mean of its divisors is an integer number (24962006).

Almost surely, 2^128836144 is an apocalyptic number.

It is an amenable number.

128836144 is a deficient number, since it is larger than the sum of its proper divisors (120783916).

128836144 is an equidigital number, since it uses as much as digits as its factorization.

128836144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8052267 (or 8052261 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 128836144 is about 11350.6010413546. The cubic root of 128836144 is about 505.0634093498.

The spelling of 128836144 in words is "one hundred twenty-eight million, eight hundred thirty-six thousand, one hundred forty-four".