128369995 has 8 divisors (see below), whose sum is σ = 165893616. Its totient is φ = 94796256.

The previous prime is 128369993. The next prime is 128370001. The reversal of 128369995 is 599963821.

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

It is a cyclic number.

It is not a de Polignac number, because 128369995 - 2¹ = 128369993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128369993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 987397 + ... + 987526.

It is an arithmetic number, because the mean of its divisors is an integer number (20736702).

Almost surely, 2^128369995 is an apocalyptic number.

128369995 is a deficient number, since it is larger than the sum of its proper divisors (37523621).

128369995 is a wasteful number, since it uses less digits than its factorization.

128369995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974941.

The product of its digits is 1049760, while the sum is 52.

The square root of 128369995 is about 11330.0483229331. The cubic root of 128369995 is about 504.4535408391.

The spelling of 128369995 in words is "one hundred twenty-eight million, three hundred sixty-nine thousand, nine hundred ninety-five".