128030554 has 8 divisors (see below), whose sum is σ = 192474900. Its totient is φ = 63872256.

The previous prime is 128030549. The next prime is 128030557. The reversal of 128030554 is 455030821.

It can be written as a sum of positive squares in 2 ways, for example, as 127803025 + 227529 = 11305^2 + 477^2 .

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

It is a super-4 number, since 4×128030554⁴ (a number of 34 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (128030557) 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, 70389 + ... + 72184.

Almost surely, 2^128030554 is an apocalyptic number.

128030554 is a deficient number, since it is larger than the sum of its proper divisors (64444346).

128030554 is a wasteful number, since it uses less digits than its factorization.

128030554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143024.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 128030554 is about 11315.0587272007. The cubic root of 128030554 is about 504.0085163800.

The spelling of 128030554 in words is "one hundred twenty-eight million, thirty thousand, five hundred fifty-four".