16514389 has 2 divisors, whose sum is σ = 16514390. Its totient is φ = 16514388.

The previous prime is 16514371. The next prime is 16514423. The reversal of 16514389 is 98341561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14691889 + 1822500 = 3833^2 + 1350^2 .

It is a cyclic number.

It is not a de Polignac number, because 16514389 - 2¹¹ = 16512341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16514339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8257194 + 8257195.

It is an arithmetic number, because the mean of its divisors is an integer number (8257195).

Almost surely, 2^16514389 is an apocalyptic number.

It is an amenable number.

16514389 is a deficient number, since it is larger than the sum of its proper divisors (1).

16514389 is an equidigital number, since it uses as much as digits as its factorization.

16514389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 37.

The square root of 16514389 is about 4063.7899798095. The cubic root of 16514389 is about 254.6561506749.

The spelling of 16514389 in words is "sixteen million, five hundred fourteen thousand, three hundred eighty-nine".