122085439 has 4 divisors (see below), whose sum is σ = 139526224. Its totient is φ = 104644656.

The previous prime is 122085437. The next prime is 122085443. The reversal of 122085439 is 934580221.

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 122085439 - 2¹ = 122085437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122085433) 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, 8720382 + ... + 8720395.

It is an arithmetic number, because the mean of its divisors is an integer number (34881556).

Almost surely, 2^122085439 is an apocalyptic number.

122085439 is a deficient number, since it is larger than the sum of its proper divisors (17440785).

122085439 is an equidigital number, since it uses as much as digits as its factorization.

122085439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17440784.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 122085439 is about 11049.2279820809. The cubic root of 122085439 is about 496.0833179819.

The spelling of 122085439 in words is "one hundred twenty-two million, eighty-five thousand, four hundred thirty-nine".