13732257 has 16 divisors (see below), whose sum is σ = 22828032. Its totient is φ = 7133520.

The previous prime is 13732241. The next prime is 13732331. The reversal of 13732257 is 75223731.

It is not a de Polignac number, because 13732257 - 2⁴ = 13732241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13732207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29493 + ... + 29954.

It is an arithmetic number, because the mean of its divisors is an integer number (1426752).

Almost surely, 2^13732257 is an apocalyptic number.

It is an amenable number.

13732257 is a deficient number, since it is larger than the sum of its proper divisors (9095775).

13732257 is a wasteful number, since it uses less digits than its factorization.

13732257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59468.

The product of its digits is 8820, while the sum is 30.

The square root of 13732257 is about 3705.7060056081. The cubic root of 13732257 is about 239.4679010275.

Adding to 13732257 its reverse (75223731), we get a palindrome (88955988).

The spelling of 13732257 in words is "thirteen million, seven hundred thirty-two thousand, two hundred fifty-seven".