128024513 has 8 divisors (see below), whose sum is σ = 134396160. Its totient is φ = 121793040.

The previous prime is 128024503. The next prime is 128024563. The reversal of 128024513 is 315420821.

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 128024513 - 2⁴ = 128024497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128024503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33170 + ... + 36827.

It is an arithmetic number, because the mean of its divisors is an integer number (16799520).

Almost surely, 2^128024513 is an apocalyptic number.

It is an amenable number.

128024513 is a deficient number, since it is larger than the sum of its proper divisors (6371647).

128024513 is an equidigital number, since it uses as much as digits as its factorization.

128024513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70087.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 128024513 is about 11314.7917789061. The cubic root of 128024513 is about 504.0005892010. Note that the first 3 decimals are identical.

The spelling of 128024513 in words is "one hundred twenty-eight million, twenty-four thousand, five hundred thirteen".