133040123 has 8 divisors (see below), whose sum is σ = 139215888. Its totient is φ = 127000224.

The previous prime is 133040101. The next prime is 133040177. The reversal of 133040123 is 321040331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133040123 - 2¹⁰ = 133039099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133040423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31961 + ... + 35882.

It is an arithmetic number, because the mean of its divisors is an integer number (17401986).

Almost surely, 2^133040123 is an apocalyptic number.

133040123 is a deficient number, since it is larger than the sum of its proper divisors (6175765).

133040123 is an equidigital number, since it uses as much as digits as its factorization.

133040123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67933.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 133040123 is about 11534.3020161603. The cubic root of 133040123 is about 510.4981970139.

Adding to 133040123 its reverse (321040331), we get a palindrome (454080454).

The spelling of 133040123 in words is "one hundred thirty-three million, forty thousand, one hundred twenty-three".