123550535 has 4 divisors (see below), whose sum is σ = 148260648. Its totient is φ = 98840424.

The previous prime is 123550517. The next prime is 123550541. The reversal of 123550535 is 535055321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 535055321 = 43 ⋅12443147.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123550535 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123550498 and 123550507.

It is a congruent number.

It is an unprimeable number.

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, 12355049 + ... + 12355058.

It is an arithmetic number, because the mean of its divisors is an integer number (37065162).

Almost surely, 2^123550535 is an apocalyptic number.

123550535 is a deficient number, since it is larger than the sum of its proper divisors (24710113).

123550535 is an equidigital number, since it uses as much as digits as its factorization.

123550535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24710112.

The product of its (nonzero) digits is 11250, while the sum is 29.

The square root of 123550535 is about 11115.3288300437. The cubic root of 123550535 is about 498.0598614622.

The spelling of 123550535 in words is "one hundred twenty-three million, five hundred fifty thousand, five hundred thirty-five".