123355533 has 16 divisors (see below), whose sum is σ = 188228096. Its totient is φ = 70392240.

The previous prime is 123355517. The next prime is 123355549. The reversal of 123355533 is 335553321.

It is an interprime number because it is at equal distance from previous prime (123355517) and next prime (123355549).

It is not a de Polignac number, because 123355533 - 2⁴ = 123355517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123355533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123355633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13410 + ... + 20652.

It is an arithmetic number, because the mean of its divisors is an integer number (11764256).

Almost surely, 2^123355533 is an apocalyptic number.

It is an amenable number.

123355533 is a deficient number, since it is larger than the sum of its proper divisors (64872563).

123355533 is an equidigital number, since it uses as much as digits as its factorization.

123355533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8064.

The product of its digits is 20250, while the sum is 30.

The square root of 123355533 is about 11106.5536058671. The cubic root of 123355533 is about 497.7976912477.

The spelling of 123355533 in words is "one hundred twenty-three million, three hundred fifty-five thousand, five hundred thirty-three".