13123601 has 4 divisors (see below), whose sum is σ = 13338804. Its totient is φ = 12908400.

The previous prime is 13123597. The next prime is 13123603. The reversal of 13123601 is 10632131.

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 5058001 + 8065600 = 2249^2 + 2840^2 .

It is a cyclic number.

It is not a de Polignac number, because 13123601 - 2² = 13123597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13123601.

It is not an unprimeable number, because it can be changed into a prime (13123603) 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, 107510 + ... + 107631.

It is an arithmetic number, because the mean of its divisors is an integer number (3334701).

Almost surely, 2^13123601 is an apocalyptic number.

It is an amenable number.

13123601 is a deficient number, since it is larger than the sum of its proper divisors (215203).

13123601 is an equidigital number, since it uses as much as digits as its factorization.

13123601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215202.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 13123601 is about 3622.6511010584. The cubic root of 13123601 is about 235.8763176972.

Adding to 13123601 its reverse (10632131), we get a palindrome (23755732).

It can be divided in two parts, 1312 and 3601, that added together give a cube (4913 = 17³).

The spelling of 13123601 in words is "thirteen million, one hundred twenty-three thousand, six hundred one".