13561597 has 8 divisors (see below), whose sum is σ = 16410816. Its totient is φ = 10940352.

The previous prime is 13561591. The next prime is 13561607. The reversal of 13561597 is 79516531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13561597 - 2¹⁹ = 13037309 is a prime.

It is a super-3 number, since 3×13561597³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13561591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56863 + ... + 57100.

It is an arithmetic number, because the mean of its divisors is an integer number (2051352).

Almost surely, 2^13561597 is an apocalyptic number.

13561597 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13561597 is a deficient number, since it is larger than the sum of its proper divisors (2849219).

13561597 is a wasteful number, since it uses less digits than its factorization.

13561597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113987.

The product of its digits is 28350, while the sum is 37.

The square root of 13561597 is about 3682.6073643548. The cubic root of 13561597 is about 238.4717533686.

The spelling of 13561597 in words is "thirteen million, five hundred sixty-one thousand, five hundred ninety-seven".