56145 has 16 divisors (see below), whose sum is σ = 95040. Its totient is φ = 28224.

The previous prime is 56131. The next prime is 56149. The reversal of 56145 is 54165.

It is a happy number.

It is not a de Polignac number, because 56145 - 2⁵ = 56113 is a prime.

It is a super-2 number, since 2×56145² = 6304522050, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (56149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187 + ... + 383.

It is an arithmetic number, because the mean of its divisors is an integer number (5940).

2⁵⁶¹⁴⁵ is an apocalyptic number.

It is an amenable number.

56145 is a deficient number, since it is larger than the sum of its proper divisors (38895).

56145 is a wasteful number, since it uses less digits than its factorization.

56145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224.

The product of its digits is 600, while the sum is 21.

The square root of 56145 is about 236.9493616788. The cubic root of 56145 is about 38.2916160321.

It can be divided in two parts, 561 and 45, that added together give a palindrome (606).

The spelling of 56145 in words is "fifty-six thousand, one hundred forty-five".