13722241 has 8 divisors (see below), whose sum is σ = 14986944. Its totient is φ = 12487440.

The previous prime is 13722239. The next prime is 13722277. The reversal of 13722241 is 14222731.

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 13722241 - 2¹ = 13722239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13722341) 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, 6511 + ... + 8356.

It is an arithmetic number, because the mean of its divisors is an integer number (1873368).

Almost surely, 2^13722241 is an apocalyptic number.

It is an amenable number.

13722241 is a deficient number, since it is larger than the sum of its proper divisors (1264703).

13722241 is a wasteful number, since it uses less digits than its factorization.

13722241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14951.

The product of its digits is 672, while the sum is 22.

The square root of 13722241 is about 3704.3543297044. The cubic root of 13722241 is about 239.4096660296.

Adding to 13722241 its reverse (14222731), we get a palindrome (27944972).

The spelling of 13722241 in words is "thirteen million, seven hundred twenty-two thousand, two hundred forty-one".