16512241 has 2 divisors, whose sum is σ = 16512242. Its totient is φ = 16512240.

The previous prime is 16512211. The next prime is 16512263. The reversal of 16512241 is 14221561.

It is an a-pointer prime, because the next prime (16512263) can be obtained adding 16512241 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12496225 + 4016016 = 3535^2 + 2004^2 .

It is an emirp because it is prime and its reverse (14221561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16512241 - 2¹³ = 16504049 is a prime.

It is not a weakly prime, because it can be changed into another prime (16512211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8256120 + 8256121.

It is an arithmetic number, because the mean of its divisors is an integer number (8256121).

Almost surely, 2^16512241 is an apocalyptic number.

It is an amenable number.

16512241 is a deficient number, since it is larger than the sum of its proper divisors (1).

16512241 is an equidigital number, since it uses as much as digits as its factorization.

16512241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480, while the sum is 22.

The square root of 16512241 is about 4063.5256859038. The cubic root of 16512241 is about 254.6451092909.

It can be divided in two parts, 1651224 and 1, that added together give a square (1651225 = 1285²).

The spelling of 16512241 in words is "sixteen million, five hundred twelve thousand, two hundred forty-one".