128276937 has 12 divisors (see below), whose sum is σ = 186261504. Its totient is φ = 85069080.

The previous prime is 128276933. The next prime is 128276989. The reversal of 128276937 is 739672821.

It is not a de Polignac number, because 128276937 - 2² = 128276933 is a prime.

It is a super-2 number, since 2×128276937² = 32909945132203938, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 128276892 and 128276901.

It is not an unprimeable number, because it can be changed into a prime (128276933) 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, 35593 + ... + 39030.

It is an arithmetic number, because the mean of its divisors is an integer number (15521792).

Almost surely, 2^128276937 is an apocalyptic number.

It is an amenable number.

128276937 is a deficient number, since it is larger than the sum of its proper divisors (57984567).

128276937 is a wasteful number, since it uses less digits than its factorization.

128276937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74820 (or 74817 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 128276937 is about 11325.9408880675. The cubic root of 128276937 is about 504.3316151882.

The spelling of 128276937 in words is "one hundred twenty-eight million, two hundred seventy-six thousand, nine hundred thirty-seven".