128554411 has 2 divisors, whose sum is σ = 128554412. Its totient is φ = 128554410.

The previous prime is 128554373. The next prime is 128554423. The reversal of 128554411 is 114455821.

It is a strong prime.

It is an emirp because it is prime and its reverse (114455821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128554411 - 2⁹ = 128553899 is a prime.

It is equal to p_7300687 and since 128554411 and 7300687 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (128554471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64277205 + 64277206.

It is an arithmetic number, because the mean of its divisors is an integer number (64277206).

Almost surely, 2^128554411 is an apocalyptic number.

128554411 is a deficient number, since it is larger than the sum of its proper divisors (1).

128554411 is an equidigital number, since it uses as much as digits as its factorization.

128554411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6400, while the sum is 31.

The square root of 128554411 is about 11338.1837610792. The cubic root of 128554411 is about 504.6949908009.

It can be divided in two parts, 1285 and 54411, that added together give a square (55696 = 236²).

The spelling of 128554411 in words is "one hundred twenty-eight million, five hundred fifty-four thousand, four hundred eleven".