13457249 has 8 divisors (see below), whose sum is σ = 14626920. Its totient is φ = 12306816.

The previous prime is 13457243. The next prime is 13457261. The reversal of 13457249 is 94275431.

It can be written as a sum of positive squares in 4 ways, for example, as 3025 + 13454224 = 55^2 + 3668^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13457249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13457243) 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 7 ways as a sum of consecutive naturals, for example, 3332 + ... + 6165.

It is an arithmetic number, because the mean of its divisors is an integer number (1828365).

Almost surely, 2^13457249 is an apocalyptic number.

It is an amenable number.

13457249 is a deficient number, since it is larger than the sum of its proper divisors (1169671).

13457249 is a wasteful number, since it uses less digits than its factorization.

13457249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9619.

The product of its digits is 30240, while the sum is 35.

The square root of 13457249 is about 3668.4123268793. The cubic root of 13457249 is about 237.8585476342.

The spelling of 13457249 in words is "thirteen million, four hundred fifty-seven thousand, two hundred forty-nine".