13045997 has 2 divisors, whose sum is σ = 13045998. Its totient is φ = 13045996.

The previous prime is 13045961. The next prime is 13045999. The reversal of 13045997 is 79954031.

It is a happy number.

13045997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12033961 + 1012036 = 3469^2 + 1006^2 .

It is an emirp because it is prime and its reverse (79954031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13045997 - 2⁶ = 13045933 is a prime.

Together with 13045999, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13045997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13045999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6522998 + 6522999.

It is an arithmetic number, because the mean of its divisors is an integer number (6522999).

Almost surely, 2^13045997 is an apocalyptic number.

It is an amenable number.

13045997 is a deficient number, since it is larger than the sum of its proper divisors (1).

13045997 is an equidigital number, since it uses as much as digits as its factorization.

13045997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 13045997 is about 3611.9242793835. The cubic root of 13045997 is about 235.4104611655.

The spelling of 13045997 in words is "thirteen million, forty-five thousand, nine hundred ninety-seven".