122745377543 has 4 divisors (see below), whose sum is σ = 122746097760. Its totient is φ = 122744657328.

The previous prime is 122745377533. The next prime is 122745377591. The reversal of 122745377543 is 345773547221.

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: 345773547221 = 547 ⋅632127143.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122745377543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122745377491 and 122745377500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122745377533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55163 + ... + 498531.

It is an arithmetic number, because the mean of its divisors is an integer number (30686524440).

Almost surely, 2^122745377543 is an apocalyptic number.

122745377543 is a deficient number, since it is larger than the sum of its proper divisors (720217).

122745377543 is an equidigital number, since it uses as much as digits as its factorization.

122745377543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720216.

The product of its digits is 4939200, while the sum is 50.

The spelling of 122745377543 in words is "one hundred twenty-two billion, seven hundred forty-five million, three hundred seventy-seven thousand, five hundred forty-three".