13337225 has 18 divisors (see below), whose sum is σ = 18182430. Its totient is φ = 9697600.

The previous prime is 13337213. The next prime is 13337239. The reversal of 13337225 is 52273331.

It can be written as a sum of positive squares in 3 ways, for example, as 121 + 13337104 = 11^2 + 3652^2 .

It is not a de Polignac number, because 13337225 - 2¹⁸ = 13075081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13337194 and 13337203.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 821 + ... + 5229.

It is an arithmetic number, because the mean of its divisors is an integer number (1010135).

Almost surely, 2^13337225 is an apocalyptic number.

It is an amenable number.

13337225 is a deficient number, since it is larger than the sum of its proper divisors (4845205).

13337225 is a wasteful number, since it uses less digits than its factorization.

13337225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4441 (or 4425 counting only the distinct ones).

The product of its digits is 3780, while the sum is 26.

The square root of 13337225 is about 3652.0165662275. The cubic root of 13337225 is about 237.1492884603.

It can be divided in two parts, 1333 and 7225, that added together give a palindrome (8558).

The spelling of 13337225 in words is "thirteen million, three hundred thirty-seven thousand, two hundred twenty-five".