13745797 has 24 divisors (see below), whose sum is σ = 16322040. Its totient is φ = 11491200.

The previous prime is 13745791. The next prime is 13745807. The reversal of 13745797 is 79754731.

It can be written as a sum of positive squares in 4 ways, for example, as 3189796 + 10556001 = 1786^2 + 3249^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13745797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13745791) 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 23 ways as a sum of consecutive naturals, for example, 136047 + ... + 136147.

It is an arithmetic number, because the mean of its divisors is an integer number (680085).

Almost surely, 2^13745797 is an apocalyptic number.

It is an amenable number.

13745797 is a deficient number, since it is larger than the sum of its proper divisors (2576243).

13745797 is a wasteful number, since it uses less digits than its factorization.

13745797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 162 counting only the distinct ones).

The product of its digits is 185220, while the sum is 43.

The square root of 13745797 is about 3707.5324678282. The cubic root of 13745797 is about 239.5465802593.

The spelling of 13745797 in words is "thirteen million, seven hundred forty-five thousand, seven hundred ninety-seven".