16128407 has 2 divisors, whose sum is σ = 16128408. Its totient is φ = 16128406.

The previous prime is 16128391. The next prime is 16128419. The reversal of 16128407 is 70482161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16128407 - 2⁴ = 16128391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16128407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16128487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8064203 + 8064204.

It is an arithmetic number, because the mean of its divisors is an integer number (8064204).

Almost surely, 2^16128407 is an apocalyptic number.

16128407 is a deficient number, since it is larger than the sum of its proper divisors (1).

16128407 is an equidigital number, since it uses as much as digits as its factorization.

16128407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 16128407 is about 4016.0187997568. The cubic root of 16128407 is about 252.6565091846.

The spelling of 16128407 in words is "sixteen million, one hundred twenty-eight thousand, four hundred seven".