128967854 has 8 divisors (see below), whose sum is σ = 201862800. Its totient is φ = 61680256.

The previous prime is 128967851. The next prime is 128967869. The reversal of 128967854 is 458769821.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128967851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1401779 + ... + 1401870.

It is an arithmetic number, because the mean of its divisors is an integer number (25232850).

Almost surely, 2^128967854 is an apocalyptic number.

128967854 is a deficient number, since it is larger than the sum of its proper divisors (72894946).

128967854 is a wasteful number, since it uses less digits than its factorization.

128967854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2803674.

The product of its digits is 967680, while the sum is 50.

The square root of 128967854 is about 11356.4014546863. The cubic root of 128967854 is about 505.2354605664.

The spelling of 128967854 in words is "one hundred twenty-eight million, nine hundred sixty-seven thousand, eight hundred fifty-four".