13441657 has 2 divisors, whose sum is σ = 13441658. Its totient is φ = 13441656.

The previous prime is 13441643. The next prime is 13441723. The reversal of 13441657 is 75614431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12559936 + 881721 = 3544^2 + 939^2 .

It is an emirp because it is prime and its reverse (75614431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13441657 is a prime.

It is a super-4 number, since 4×13441657⁴ (a number of 30 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (13441627) 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 as a sum of consecutive naturals, namely, 6720828 + 6720829.

It is an arithmetic number, because the mean of its divisors is an integer number (6720829).

Almost surely, 2^13441657 is an apocalyptic number.

It is an amenable number.

13441657 is a deficient number, since it is larger than the sum of its proper divisors (1).

13441657 is an equidigital number, since it uses as much as digits as its factorization.

13441657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 13441657 is about 3666.2865409021. The cubic root of 13441657 is about 237.7666486204.

The spelling of 13441657 in words is "thirteen million, four hundred forty-one thousand, six hundred fifty-seven".