128737307 has 2 divisors, whose sum is σ = 128737308. Its totient is φ = 128737306.

The previous prime is 128737303. The next prime is 128737309. The reversal of 128737307 is 703737821.

It is a strong prime.

It is an emirp because it is prime and its reverse (703737821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128737307 - 2² = 128737303 is a prime.

It is a super-2 number, since 2×128737307² = 33146588427224498, which contains 22 as substring.

Together with 128737309, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (128737303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64368653 + 64368654.

It is an arithmetic number, because the mean of its divisors is an integer number (64368654).

Almost surely, 2^128737307 is an apocalyptic number.

128737307 is a deficient number, since it is larger than the sum of its proper divisors (1).

128737307 is an equidigital number, since it uses as much as digits as its factorization.

128737307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 128737307 is about 11346.2463837165. The cubic root of 128737307 is about 504.9342227173.

The spelling of 128737307 in words is "one hundred twenty-eight million, seven hundred thirty-seven thousand, three hundred seven".