130623 has 4 divisors (see below), whose sum is σ = 174168. Its totient is φ = 87080.

The previous prime is 130621. The next prime is 130631. The reversal of 130623 is 326031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326031 = 3 ⋅108677.

It is a cyclic number.

It is not a de Polignac number, because 130623 - 2¹ = 130621 is a prime.

It is an Ulam number.

It is a D-number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130621) 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, 21768 + ... + 21773.

It is an arithmetic number, because the mean of its divisors is an integer number (43542).

2¹³⁰⁶²³ is an apocalyptic number.

130623 is a deficient number, since it is larger than the sum of its proper divisors (43545).

130623 is an equidigital number, since it uses as much as digits as its factorization.

130623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43544.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 130623 is about 361.4180405016. The cubic root of 130623 is about 50.7387641251.

Adding to 130623 its reverse (326031), we get a palindrome (456654).

The spelling of 130623 in words is "one hundred thirty thousand, six hundred twenty-three".