16146289 has 2 divisors, whose sum is σ = 16146290. Its totient is φ = 16146288.

The previous prime is 16146281. The next prime is 16146293. The reversal of 16146289 is 98264161.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16136289 + 10000 = 4017^2 + 100^2 .

It is an emirp because it is prime and its reverse (98264161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16146289 - 2³ = 16146281 is a prime.

It is not a weakly prime, because it can be changed into another prime (16146281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8073144 + 8073145.

It is an arithmetic number, because the mean of its divisors is an integer number (8073145).

Almost surely, 2^16146289 is an apocalyptic number.

It is an amenable number.

16146289 is a deficient number, since it is larger than the sum of its proper divisors (1).

16146289 is an equidigital number, since it uses as much as digits as its factorization.

16146289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 16146289 is about 4018.2445171990. The cubic root of 16146289 is about 252.7498503927.

The spelling of 16146289 in words is "sixteen million, one hundred forty-six thousand, two hundred eighty-nine".