16214481 has 12 divisors (see below), whose sum is σ = 24798852. Its totient is φ = 10173696.

The previous prime is 16214461. The next prime is 16214503. The reversal of 16214481 is 18441261.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10497600 + 5716881 = 3240^2 + 2391^2 .

It is not a de Polignac number, because 16214481 - 2⁶ = 16214417 is a prime.

It is a super-2 number, since 2×16214481² = 525818788198722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16214431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52836 + ... + 53141.

It is an arithmetic number, because the mean of its divisors is an integer number (2066571).

Almost surely, 2^16214481 is an apocalyptic number.

It is an amenable number.

16214481 is a deficient number, since it is larger than the sum of its proper divisors (8584371).

16214481 is a wasteful number, since it uses less digits than its factorization.

16214481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106000 (or 105997 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 16214481 is about 4026.7208743592. The cubic root of 16214481 is about 253.1051706460.

The spelling of 16214481 in words is "sixteen million, two hundred fourteen thousand, four hundred eighty-one".