13958225 has 12 divisors (see below), whose sum is σ = 17355660. Its totient is φ = 11136000.

The previous prime is 13958221. The next prime is 13958249. The reversal of 13958225 is 52285931.

It can be written as a sum of positive squares in 6 ways, for example, as 1048576 + 12909649 = 1024^2 + 3593^2 .

It is not a de Polignac number, because 13958225 - 2² = 13958221 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13958221) 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 11 ways as a sum of consecutive naturals, for example, 14561 + ... + 15489.

It is an arithmetic number, because the mean of its divisors is an integer number (1446305).

Almost surely, 2^13958225 is an apocalyptic number.

It is an amenable number.

13958225 is a deficient number, since it is larger than the sum of its proper divisors (3397435).

13958225 is an equidigital number, since it uses as much as digits as its factorization.

13958225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540 (or 1535 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 13958225 is about 3736.0707969737. The cubic root of 13958225 is about 240.7742645038.

The spelling of 13958225 in words is "thirteen million, nine hundred fifty-eight thousand, two hundred twenty-five".