128553523 has 8 divisors (see below), whose sum is σ = 148988160. Its totient is φ = 108636360.

The previous prime is 128553521. The next prime is 128553553. The reversal of 128553523 is 325355821.

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

It is not a de Polignac number, because 128553523 - 2¹ = 128553521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128553521) 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, 128833 + ... + 129826.

It is an arithmetic number, because the mean of its divisors is an integer number (18623520).

Almost surely, 2^128553523 is an apocalyptic number.

128553523 is a deficient number, since it is larger than the sum of its proper divisors (20434637).

128553523 is an equidigital number, since it uses as much as digits as its factorization.

128553523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258737.

The product of its digits is 36000, while the sum is 34.

The square root of 128553523 is about 11338.1446013005. The cubic root of 128553523 is about 504.6938287244.

The spelling of 128553523 in words is "one hundred twenty-eight million, five hundred fifty-three thousand, five hundred twenty-three".