122840453 has 8 divisors (see below), whose sum is σ = 136912320. Its totient is φ = 109529280.

The previous prime is 122840449. The next prime is 122840461. The reversal of 122840453 is 354048221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122840453 - 2² = 122840449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122840423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189833 + ... + 190478.

It is an arithmetic number, because the mean of its divisors is an integer number (17114040).

Almost surely, 2^122840453 is an apocalyptic number.

It is an amenable number.

122840453 is a deficient number, since it is larger than the sum of its proper divisors (14071867).

122840453 is a wasteful number, since it uses less digits than its factorization.

122840453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380347.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 122840453 is about 11083.3412380924. The cubic root of 122840453 is about 497.1038611485.

Adding to 122840453 its reverse (354048221), we get a palindrome (476888674).

The spelling of 122840453 in words is "one hundred twenty-two million, eight hundred forty thousand, four hundred fifty-three".