128053499 has 8 divisors (see below), whose sum is σ = 146877408. Its totient is φ = 109362240.

The previous prime is 128053493. The next prime is 128053501. The reversal of 128053499 is 994350821.

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

It is a cyclic number.

It is not a de Polignac number, because 128053499 - 2⁸ = 128053243 is a prime.

It is a super-2 number, since 2×128053499² = 32795397212286002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128053493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31082 + ... + 34959.

It is an arithmetic number, because the mean of its divisors is an integer number (18359676).

Almost surely, 2^128053499 is an apocalyptic number.

128053499 is a deficient number, since it is larger than the sum of its proper divisors (18823909).

128053499 is an equidigital number, since it uses as much as digits as its factorization.

128053499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66325.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 128053499 is about 11316.0725960909. The cubic root of 128053499 is about 504.0386232159.

The spelling of 128053499 in words is "one hundred twenty-eight million, fifty-three thousand, four hundred ninety-nine".