13725211 has 4 divisors (see below), whose sum is σ = 13853592. Its totient is φ = 13596832.

The previous prime is 13725203. The next prime is 13725221. The reversal of 13725211 is 11252731.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13725211 - 2³ = 13725203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13725221) 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 in 3 ways as a sum of consecutive naturals, for example, 64030 + ... + 64243.

It is an arithmetic number, because the mean of its divisors is an integer number (3463398).

Almost surely, 2^13725211 is an apocalyptic number.

13725211 is a deficient number, since it is larger than the sum of its proper divisors (128381).

13725211 is a wasteful number, since it uses less digits than its factorization.

13725211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128380.

The product of its digits is 420, while the sum is 22.

The square root of 13725211 is about 3704.7551875934. The cubic root of 13725211 is about 239.4269371496.

Adding to 13725211 its reverse (11252731), we get a palindrome (24977942).

The spelling of 13725211 in words is "thirteen million, seven hundred twenty-five thousand, two hundred eleven".