122704405 has 16 divisors (see below), whose sum is σ = 148832640. Its totient is φ = 97112512.

The previous prime is 122704369. The next prime is 122704409. The reversal of 122704405 is 504407221.

It is a cyclic number.

It is not a de Polignac number, because 122704405 - 2¹⁷ = 122573333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122704405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122704409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341616 + ... + 341974.

It is an arithmetic number, because the mean of its divisors is an integer number (9302040).

Almost surely, 2^122704405 is an apocalyptic number.

It is an amenable number.

122704405 is a deficient number, since it is larger than the sum of its proper divisors (26128235).

122704405 is a wasteful number, since it uses less digits than its factorization.

122704405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 122704405 is about 11077.2020384211. The cubic root of 122704405 is about 496.9202762165.

The spelling of 122704405 in words is "one hundred twenty-two million, seven hundred four thousand, four hundred five".