122547412643 has 4 divisors (see below), whose sum is σ = 123232035240. Its totient is φ = 121862790048.

The previous prime is 122547412613. The next prime is 122547412657. The reversal of 122547412643 is 346214745221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346214745221 = 61 ⋅5675651561.

It is a cyclic number.

It is not a de Polignac number, because 122547412643 - 2²² = 122543218339 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 122547412643.

It is not an unprimeable number, because it can be changed into a prime (122547412613) 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, 342311030 + ... + 342311387.

It is an arithmetic number, because the mean of its divisors is an integer number (30808008810).

Almost surely, 2^122547412643 is an apocalyptic number.

122547412643 is a deficient number, since it is larger than the sum of its proper divisors (684622597).

122547412643 is an equidigital number, since it uses as much as digits as its factorization.

122547412643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684622596.

The product of its digits is 322560, while the sum is 41.

The spelling of 122547412643 in words is "one hundred twenty-two billion, five hundred forty-seven million, four hundred twelve thousand, six hundred forty-three".