128288954 has 8 divisors (see below), whose sum is σ = 192505908. Its totient is φ = 64120320.

The previous prime is 128288947. The next prime is 128288957. The reversal of 128288954 is 459882821.

It can be written as a sum of positive squares in 2 ways, for example, as 116143729 + 12145225 = 10777^2 + 3485^2 .

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 = 128288899 and 128288908.

It is not an unprimeable number, because it can be changed into a prime (128288957) 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, 4487 + ... + 16634.

Almost surely, 2^128288954 is an apocalyptic number.

128288954 is a deficient number, since it is larger than the sum of its proper divisors (64216954).

128288954 is a wasteful number, since it uses less digits than its factorization.

128288954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24160.

The product of its digits is 368640, while the sum is 47.

The square root of 128288954 is about 11326.4713834451. The cubic root of 128288954 is about 504.3473633134.

The spelling of 128288954 in words is "one hundred twenty-eight million, two hundred eighty-eight thousand, nine hundred fifty-four".