128049070 has 8 divisors (see below), whose sum is σ = 230488344. Its totient is φ = 51219624.

The previous prime is 128049059. The next prime is 128049101. The reversal of 128049070 is 70940821.

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

It is a congruent number.

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, 6402444 + ... + 6402463.

It is an arithmetic number, because the mean of its divisors is an integer number (28811043).

Almost surely, 2^128049070 is an apocalyptic number.

128049070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128049070 is a deficient number, since it is larger than the sum of its proper divisors (102439274).

128049070 is a wasteful number, since it uses less digits than its factorization.

128049070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12804914.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 128049070 is about 11315.8768992951. The cubic root of 128049070 is about 504.0328120697.

Adding to 128049070 its reverse (70940821), we get a palindrome (198989891).

Subtracting from 128049070 its reverse (70940821), we obtain a square (57108249 = 7557²).

The spelling of 128049070 in words is "one hundred twenty-eight million, forty-nine thousand, seventy".