128302853 has 4 divisors (see below), whose sum is σ = 146631840. Its totient is φ = 109973868.

The previous prime is 128302849. The next prime is 128302871. The reversal of 128302853 is 358203821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 128302853 - 2² = 128302849 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128302813) 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, 9164483 + ... + 9164496.

It is an arithmetic number, because the mean of its divisors is an integer number (36657960).

Almost surely, 2^128302853 is an apocalyptic number.

It is an amenable number.

128302853 is a deficient number, since it is larger than the sum of its proper divisors (18328987).

128302853 is an equidigital number, since it uses as much as digits as its factorization.

128302853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18328986.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 128302853 is about 11327.0849294953. The cubic root of 128302853 is about 504.3655765491.

The spelling of 128302853 in words is "one hundred twenty-eight million, three hundred two thousand, eight hundred fifty-three".