16315289 has 2 divisors, whose sum is σ = 16315290. Its totient is φ = 16315288.

The previous prime is 16315267. The next prime is 16315301. The reversal of 16315289 is 98251361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11833600 + 4481689 = 3440^2 + 2117^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16315289 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16315249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8157644 + 8157645.

It is an arithmetic number, because the mean of its divisors is an integer number (8157645).

Almost surely, 2^16315289 is an apocalyptic number.

It is an amenable number.

16315289 is a deficient number, since it is larger than the sum of its proper divisors (1).

16315289 is an equidigital number, since it uses as much as digits as its factorization.

16315289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 35.

The square root of 16315289 is about 4039.2188601263. The cubic root of 16315289 is about 253.6286190157.

The spelling of 16315289 in words is "sixteen million, three hundred fifteen thousand, two hundred eighty-nine".