13451225 has 6 divisors (see below), whose sum is σ = 16679550. Its totient is φ = 10760960.

The previous prime is 13451219. The next prime is 13451237. The reversal of 13451225 is 52215431.

It can be written as a sum of positive squares in 3 ways, for example, as 179776 + 13271449 = 424^2 + 3643^2 .

It is not a de Polignac number, because 13451225 - 2⁴ = 13451209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13451225.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 269000 + ... + 269049.

It is an arithmetic number, because the mean of its divisors is an integer number (2779925).

Almost surely, 2^13451225 is an apocalyptic number.

It is an amenable number.

13451225 is a deficient number, since it is larger than the sum of its proper divisors (3228325).

13451225 is an equidigital number, since it uses as much as digits as its factorization.

13451225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538059 (or 538054 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 13451225 is about 3667.5911713276. The cubic root of 13451225 is about 237.8230506876.

Adding to 13451225 its reverse (52215431), we get a palindrome (65666656).

The spelling of 13451225 in words is "thirteen million, four hundred fifty-one thousand, two hundred twenty-five".