122353643 has 4 divisors (see below), whose sum is σ = 124956960. Its totient is φ = 119750328.

The previous prime is 122353603. The next prime is 122353657. The reversal of 122353643 is 346353221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122353643 - 2¹² = 122349547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122353603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301588 + ... + 1301681.

It is an arithmetic number, because the mean of its divisors is an integer number (31239240).

Almost surely, 2^122353643 is an apocalyptic number.

122353643 is a deficient number, since it is larger than the sum of its proper divisors (2603317).

122353643 is an equidigital number, since it uses as much as digits as its factorization.

122353643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2603316.

The product of its digits is 12960, while the sum is 29.

The square root of 122353643 is about 11061.3580992571. The cubic root of 122353643 is about 496.4463266486.

The spelling of 122353643 in words is "one hundred twenty-two million, three hundred fifty-three thousand, six hundred forty-three".