128132037 has 20 divisors (see below), whose sum is σ = 208809216. Its totient is φ = 77655240.

The previous prime is 128132033. The next prime is 128132041. The reversal of 128132037 is 730231821.

It is an interprime number because it is at equal distance from previous prime (128132033) and next prime (128132041).

It is not a de Polignac number, because 128132037 - 2² = 128132033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 128132037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128132033) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 71013 + ... + 72794.

Almost surely, 2^128132037 is an apocalyptic number.

It is an amenable number.

128132037 is a deficient number, since it is larger than the sum of its proper divisors (80677179).

128132037 is a wasteful number, since it uses less digits than its factorization.

128132037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143830 (or 143821 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 128132037 is about 11319.5422610634. The cubic root of 128132037 is about 504.1416481115.

Adding to 128132037 its reverse (730231821), we get a palindrome (858363858).

The spelling of 128132037 in words is "one hundred twenty-eight million, one hundred thirty-two thousand, thirty-seven".