16554229 has 2 divisors, whose sum is σ = 16554230. Its totient is φ = 16554228.

The previous prime is 16554221. The next prime is 16554247. The reversal of 16554229 is 92245561.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8584900 + 7969329 = 2930^2 + 2823^2 .

It is a cyclic number.

It is not a de Polignac number, because 16554229 - 2³ = 16554221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16554194 and 16554203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16554221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8277114 + 8277115.

It is an arithmetic number, because the mean of its divisors is an integer number (8277115).

Almost surely, 2^16554229 is an apocalyptic number.

It is an amenable number.

16554229 is a deficient number, since it is larger than the sum of its proper divisors (1).

16554229 is an equidigital number, since it uses as much as digits as its factorization.

16554229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 34.

The square root of 16554229 is about 4068.6888551473. The cubic root of 16554229 is about 254.8607672567.

The spelling of 16554229 in words is "sixteen million, five hundred fifty-four thousand, two hundred twenty-nine".