128374583 has 4 divisors (see below), whose sum is σ = 135131160. Its totient is φ = 121618008.

The previous prime is 128374577. The next prime is 128374591. The reversal of 128374583 is 385473821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128374583 - 2¹⁰ = 128373559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128374583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128374573) 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, 3378260 + ... + 3378297.

It is an arithmetic number, because the mean of its divisors is an integer number (33782790).

Almost surely, 2^128374583 is an apocalyptic number.

128374583 is a deficient number, since it is larger than the sum of its proper divisors (6756577).

128374583 is an equidigital number, since it uses as much as digits as its factorization.

128374583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6756576.

The product of its digits is 161280, while the sum is 41.

The square root of 128374583 is about 11330.2507915756. The cubic root of 128374583 is about 504.4595505646.

The spelling of 128374583 in words is "one hundred twenty-eight million, three hundred seventy-four thousand, five hundred eighty-three".