14361821 has 12 divisors (see below), whose sum is σ = 15906492. Its totient is φ = 12921216.

The previous prime is 14361793. The next prime is 14361827. The reversal of 14361821 is 12816341.

It can be written as a sum of positive squares in 2 ways, for example, as 6996025 + 7365796 = 2645^2 + 2714^2 .

It is a de Polignac number, because none of the positive numbers 2^k-14361821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14361827) 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, 8195 + ... + 9791.

It is an arithmetic number, because the mean of its divisors is an integer number (1325541).

Almost surely, 2^14361821 is an apocalyptic number.

It is an amenable number.

14361821 is a deficient number, since it is larger than the sum of its proper divisors (1544671).

14361821 is a wasteful number, since it uses less digits than its factorization.

14361821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660 (or 1637 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 14361821 is about 3789.6993284428. The cubic root of 14361821 is about 243.0728780490.

The spelling of 14361821 in words is "fourteen million, three hundred sixty-one thousand, eight hundred twenty-one".