123530433 has 16 divisors (see below), whose sum is σ = 177602880. Its totient is φ = 75921984.

The previous prime is 123530431. The next prime is 123530461. The reversal of 123530433 is 334035321.

It is a happy number.

It is not a de Polignac number, because 123530433 - 2¹ = 123530431 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123530431) 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, 40210 + ... + 43172.

It is an arithmetic number, because the mean of its divisors is an integer number (11100180).

Almost surely, 2^123530433 is an apocalyptic number.

123530433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

123530433 is a deficient number, since it is larger than the sum of its proper divisors (54072447).

123530433 is a wasteful number, since it uses less digits than its factorization.

123530433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4048.

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 123530433 is about 11114.4245465071. The cubic root of 123530433 is about 498.0328481099.

Adding to 123530433 its reverse (334035321), we get a palindrome (457565754).

The spelling of 123530433 in words is "one hundred twenty-three million, five hundred thirty thousand, four hundred thirty-three".