122400543 has 16 divisors (see below), whose sum is σ = 165564000. Its totient is φ = 80424960.

The previous prime is 122400541. The next prime is 122400547. The reversal of 122400543 is 345004221.

It is not a de Polignac number, because 122400543 - 2¹ = 122400541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122400541) 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, 119373 + ... + 120393.

It is an arithmetic number, because the mean of its divisors is an integer number (10347750).

Almost surely, 2^122400543 is an apocalyptic number.

122400543 is a deficient number, since it is larger than the sum of its proper divisors (43163457).

122400543 is a wasteful number, since it uses less digits than its factorization.

122400543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 122400543 is about 11063.4778889823. The cubic root of 122400543 is about 496.5097503382.

Adding to 122400543 its reverse (345004221), we get a palindrome (467404764).

The spelling of 122400543 in words is "one hundred twenty-two million, four hundred thousand, five hundred forty-three".