128833951 has 2 divisors, whose sum is σ = 128833952. Its totient is φ = 128833950.

The previous prime is 128833933. The next prime is 128833961. The reversal of 128833951 is 159338821.

It is a strong prime.

It is an emirp because it is prime and its reverse (159338821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128833951 - 2¹¹ = 128831903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128833961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64416975 + 64416976.

It is an arithmetic number, because the mean of its divisors is an integer number (64416976).

Almost surely, 2^128833951 is an apocalyptic number.

128833951 is a deficient number, since it is larger than the sum of its proper divisors (1).

128833951 is an equidigital number, since it uses as much as digits as its factorization.

128833951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 40.

The square root of 128833951 is about 11350.5044381296. The cubic root of 128833951 is about 505.0605436676.

The spelling of 128833951 in words is "one hundred twenty-eight million, eight hundred thirty-three thousand, nine hundred fifty-one".