128694007 has 12 divisors (see below), whose sum is σ = 140442984. Its totient is φ = 117867360.

The previous prime is 128694001. The next prime is 128694023. The reversal of 128694007 is 700496821.

It is not a de Polignac number, because 128694007 - 2¹⁹ = 128169719 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 (128694001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19233 + ... + 25045.

It is an arithmetic number, because the mean of its divisors is an integer number (11703582).

Almost surely, 2^128694007 is an apocalyptic number.

128694007 is a deficient number, since it is larger than the sum of its proper divisors (11748977).

128694007 is a wasteful number, since it uses less digits than its factorization.

128694007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5970 (or 5957 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 128694007 is about 11344.3381032125. The cubic root of 128694007 is about 504.8776058643.

The spelling of 128694007 in words is "one hundred twenty-eight million, six hundred ninety-four thousand, seven".