14537221 has 8 divisors (see below), whose sum is σ = 14766840. Its totient is φ = 14309568.

The previous prime is 14537213. The next prime is 14537231. The reversal of 14537221 is 12273541.

It is a happy number.

14537221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12320100 + 2217121 = 3510^2 + 1489^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14537221 - 2³ = 14537213 is a prime.

It is a super-2 number, since 2×14537221² = 422661588805682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14537231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21135 + ... + 21811.

It is an arithmetic number, because the mean of its divisors is an integer number (1845855).

Almost surely, 2^14537221 is an apocalyptic number.

It is an amenable number.

14537221 is a deficient number, since it is larger than the sum of its proper divisors (229619).

14537221 is a wasteful number, since it uses less digits than its factorization.

14537221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983.

The product of its digits is 1680, while the sum is 25.

The square root of 14537221 is about 3812.7707772695. The cubic root of 14537221 is about 244.0584212435.

The spelling of 14537221 in words is "fourteen million, five hundred thirty-seven thousand, two hundred twenty-one".