16128757 has 2 divisors, whose sum is σ = 16128758. Its totient is φ = 16128756.

The previous prime is 16128743. The next prime is 16128769. The reversal of 16128757 is 75782161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11350161 + 4778596 = 3369^2 + 2186^2 .

It is a cyclic number.

It is not a de Polignac number, because 16128757 - 2¹⁹ = 15604469 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16128157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8064378 + 8064379.

It is an arithmetic number, because the mean of its divisors is an integer number (8064379).

Almost surely, 2^16128757 is an apocalyptic number.

It is an amenable number.

16128757 is a deficient number, since it is larger than the sum of its proper divisors (1).

16128757 is an equidigital number, since it uses as much as digits as its factorization.

16128757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23520, while the sum is 37.

The square root of 16128757 is about 4016.0623750136. The cubic root of 16128757 is about 252.6583367910.

The spelling of 16128757 in words is "sixteen million, one hundred twenty-eight thousand, seven hundred fifty-seven".