123800544 has 72 divisors (see below), whose sum is σ = 402358320. Its totient is φ = 35371008.

The previous prime is 123800531. The next prime is 123800549. The reversal of 123800544 is 445008321.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123800549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28689 + ... + 32720.

It is an arithmetic number, because the mean of its divisors is an integer number (5588310).

Almost surely, 2^123800544 is an apocalyptic number.

123800544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

123800544 is an abundant number, since it is smaller than the sum of its proper divisors (278557776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123800544 is a wasteful number, since it uses less digits than its factorization.

123800544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61432 (or 61421 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 123800544 is about 11126.5692825776. The cubic root of 123800544 is about 498.3955825292.

Adding to 123800544 its reverse (445008321), we get a palindrome (568808865).

The spelling of 123800544 in words is "one hundred twenty-three million, eight hundred thousand, five hundred forty-four".