128301693 has 8 divisors (see below), whose sum is σ = 184228128. Its totient is φ = 78954864.

The previous prime is 128301673. The next prime is 128301697. The reversal of 128301693 is 396103821.

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

It is not a de Polignac number, because 128301693 - 2¹² = 128297597 is a prime.

It is a super-2 number, since 2×128301693² = 32922648853332498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128301697) 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, 1644855 + ... + 1644932.

It is an arithmetic number, because the mean of its divisors is an integer number (23028516).

Almost surely, 2^128301693 is an apocalyptic number.

128301693 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

128301693 is a deficient number, since it is larger than the sum of its proper divisors (55926435).

128301693 is a wasteful number, since it uses less digits than its factorization.

128301693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3289803.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 128301693 is about 11327.0337246783. The cubic root of 128301693 is about 504.3640565365.

The spelling of 128301693 in words is "one hundred twenty-eight million, three hundred one thousand, six hundred ninety-three".