122500243 has 4 divisors (see below), whose sum is σ = 122522400. Its totient is φ = 122478088.

The previous prime is 122500219. The next prime is 122500247. The reversal of 122500243 is 342005221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 342005221 = 2111 ⋅162011.

It is a cyclic number.

It is not a de Polignac number, because 122500243 - 2⁵ = 122500211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122500243.

It is not an unprimeable number, because it can be changed into a prime (122500247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4833 + ... + 16381.

It is an arithmetic number, because the mean of its divisors is an integer number (30630600).

Almost surely, 2^122500243 is an apocalyptic number.

122500243 is a deficient number, since it is larger than the sum of its proper divisors (22157).

122500243 is a wasteful number, since it uses less digits than its factorization.

122500243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22156.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 122500243 is about 11067.9827882049. The cubic root of 122500243 is about 496.6445225827.

Adding to 122500243 its reverse (342005221), we get a palindrome (464505464).

The spelling of 122500243 in words is "one hundred twenty-two million, five hundred thousand, two hundred forty-three".