13445297 has 2 divisors, whose sum is σ = 13445298. Its totient is φ = 13445296.

The previous prime is 13445281. The next prime is 13445309. The reversal of 13445297 is 79254431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13366336 + 78961 = 3656^2 + 281^2 .

It is a cyclic number.

It is not a de Polignac number, because 13445297 - 2⁴ = 13445281 is a prime.

It is a super-2 number, since 2×13445297² = 361552022836418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13445207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6722648 + 6722649.

It is an arithmetic number, because the mean of its divisors is an integer number (6722649).

Almost surely, 2^13445297 is an apocalyptic number.

It is an amenable number.

13445297 is a deficient number, since it is larger than the sum of its proper divisors (1).

13445297 is an equidigital number, since it uses as much as digits as its factorization.

13445297 is an odious number, because the sum of its binary digits is odd.

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

The square root of 13445297 is about 3666.7829223994. The cubic root of 13445297 is about 237.7881090819.

The spelling of 13445297 in words is "thirteen million, four hundred forty-five thousand, two hundred ninety-seven".