123153 has 4 divisors (see below), whose sum is σ = 164208. Its totient is φ = 82100.

The previous prime is 123143. The next prime is 123169. The reversal of 123153 is 351321.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 123153 - 2⁵ = 123121 is a prime.

It is a super-2 number, since 2×123153² = 30333322818, which contains 22 as substring.

It is a D-number.

123153 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 123153.

It is not an unprimeable number, because it can be changed into a prime (123113) 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, 20523 + ... + 20528.

It is an arithmetic number, because the mean of its divisors is an integer number (41052).

2¹²³¹⁵³ is an apocalyptic number.

It is an amenable number.

123153 is a deficient number, since it is larger than the sum of its proper divisors (41055).

123153 is an equidigital number, since it uses as much as digits as its factorization.

123153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41054.

The product of its digits is 90, while the sum is 15.

The square root of 123153 is about 350.9316172704. The cubic root of 123153 is about 49.7525103318.

Adding to 123153 its reverse (351321), we get a palindrome (474474).

It can be divided in two parts, 123 and 153, that added together give a triangular number (276 = T₂₃).

The spelling of 123153 in words is "one hundred twenty-three thousand, one hundred fifty-three".