16541251 has 2 divisors, whose sum is σ = 16541252. Its totient is φ = 16541250.

The previous prime is 16541219. The next prime is 16541269. The reversal of 16541251 is 15214561.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16541251 - 2⁵ = 16541219 is a prime.

It is a super-2 number, since 2×16541251² = 547225969290002, which contains 22 as substring.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (16541201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8270625 + 8270626.

It is an arithmetic number, because the mean of its divisors is an integer number (8270626).

Almost surely, 2^16541251 is an apocalyptic number.

16541251 is a deficient number, since it is larger than the sum of its proper divisors (1).

16541251 is an equidigital number, since it uses as much as digits as its factorization.

16541251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 25.

The square root of 16541251 is about 4067.0936797669. The cubic root of 16541251 is about 254.7941488765.

The spelling of 16541251 in words is "sixteen million, five hundred forty-one thousand, two hundred fifty-one".