123550133 has 4 divisors (see below), whose sum is σ = 141200160. Its totient is φ = 105900108.

The previous prime is 123550127. The next prime is 123550139. The reversal of 123550133 is 331055321.

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 an interprime number because it is at equal distance from previous prime (123550127) and next prime (123550139).

It is a cyclic number.

It is not a de Polignac number, because 123550133 - 2⁴ = 123550117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123550099 and 123550108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123550139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8825003 + ... + 8825016.

It is an arithmetic number, because the mean of its divisors is an integer number (35300040).

Almost surely, 2^123550133 is an apocalyptic number.

It is an amenable number.

123550133 is a deficient number, since it is larger than the sum of its proper divisors (17650027).

123550133 is an equidigital number, since it uses as much as digits as its factorization.

123550133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17650026.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 123550133 is about 11115.3107468932. The cubic root of 123550133 is about 498.0593212776.

The spelling of 123550133 in words is "one hundred twenty-three million, five hundred fifty thousand, one hundred thirty-three".