13240597 has 4 divisors (see below), whose sum is σ = 13377196. Its totient is φ = 13104000.

The previous prime is 13240589. The next prime is 13240609. The reversal of 13240597 is 79504231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3944196 + 9296401 = 1986^2 + 3049^2 .

It is a cyclic number.

It is not a de Polignac number, because 13240597 - 2³ = 13240589 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 (13240537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68154 + ... + 68347.

It is an arithmetic number, because the mean of its divisors is an integer number (3344299).

Almost surely, 2^13240597 is an apocalyptic number.

It is an amenable number.

13240597 is a deficient number, since it is larger than the sum of its proper divisors (136599).

13240597 is an equidigital number, since it uses as much as digits as its factorization.

13240597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136598.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 13240597 is about 3638.7631140265. The cubic root of 13240597 is about 236.5751853888.

The spelling of 13240597 in words is "thirteen million, two hundred forty thousand, five hundred ninety-seven".