123550543 has 16 divisors (see below), whose sum is σ = 133920000. Its totient is φ = 113553792.

The previous prime is 123550541. The next prime is 123550547. The reversal of 123550543 is 345055321.

It is a cyclic number.

It is not a de Polignac number, because 123550543 - 2¹ = 123550541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123550541) 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, 199288 + ... + 199906.

It is an arithmetic number, because the mean of its divisors is an integer number (8370000).

Almost surely, 2^123550543 is an apocalyptic number.

123550543 is a deficient number, since it is larger than the sum of its proper divisors (10369457).

123550543 is a wasteful number, since it uses less digits than its factorization.

123550543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 123550543 is about 11115.3291899071. The cubic root of 123550543 is about 498.0598722121.

The spelling of 123550543 in words is "one hundred twenty-three million, five hundred fifty thousand, five hundred forty-three".