365601 has 4 divisors (see below), whose sum is σ = 487472. Its totient is φ = 243732.

The previous prime is 365591. The next prime is 365611. The reversal of 365601 is 106563.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 106563 = 3 ⋅35521.

It is an interprime number because it is at equal distance from previous prime (365591) and next prime (365611).

It is not a de Polignac number, because 365601 - 2⁵ = 365569 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 365601.

It is not an unprimeable number, because it can be changed into a prime (365611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60931 + ... + 60936.

It is an arithmetic number, because the mean of its divisors is an integer number (121868).

2³⁶⁵⁶⁰¹ is an apocalyptic number.

It is an amenable number.

365601 is a deficient number, since it is larger than the sum of its proper divisors (121871).

365601 is a wasteful number, since it uses less digits than its factorization.

365601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121870.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 365601 is about 604.6494852392. The cubic root of 365601 is about 71.5048980295.

The spelling of 365601 in words is "three hundred sixty-five thousand, six hundred one".