122154040309 has 8 divisors (see below), whose sum is σ = 140026386368. Its totient is φ = 104387136480.

The previous prime is 122154040271. The next prime is 122154040331. The reversal of 122154040309 is 903040451221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122154040309 - 2¹¹ = 122154038261 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 (122154040369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26358072 + ... + 26362705.

It is an arithmetic number, because the mean of its divisors is an integer number (17503298296).

Almost surely, 2^122154040309 is an apocalyptic number.

It is an amenable number.

122154040309 is a deficient number, since it is larger than the sum of its proper divisors (17872346059).

122154040309 is an equidigital number, since it uses as much as digits as its factorization.

122154040309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52721115.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 122154040309 in words is "one hundred twenty-two billion, one hundred fifty-four million, forty thousand, three hundred nine".