122164615493 has 2 divisors, whose sum is σ = 122164615494. Its totient is φ = 122164615492.

The previous prime is 122164615453. The next prime is 122164615537. The reversal of 122164615493 is 394516461221.

It is a happy number.

It is an a-pointer prime, because the next prime (122164615537) can be obtained adding 122164615493 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65085193924 + 57079421569 = 255118^2 + 238913^2 .

It is a cyclic number.

It is not a de Polignac number, because 122164615493 - 2³⁴ = 104984746309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122164615403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61082307746 + 61082307747.

It is an arithmetic number, because the mean of its divisors is an integer number (61082307747).

Almost surely, 2^122164615493 is an apocalyptic number.

It is an amenable number.

122164615493 is a deficient number, since it is larger than the sum of its proper divisors (1).

122164615493 is an equidigital number, since it uses as much as digits as its factorization.

122164615493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 44.

The spelling of 122164615493 in words is "one hundred twenty-two billion, one hundred sixty-four million, six hundred fifteen thousand, four hundred ninety-three".