122164513 has 2 divisors, whose sum is σ = 122164514. Its totient is φ = 122164512.

The previous prime is 122164507. The next prime is 122164531. The reversal of 122164513 is 315461221.

It is a happy number.

Together with next prime (122164531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75829264 + 46335249 = 8708^2 + 6807^2 .

It is an emirp because it is prime and its reverse (315461221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122164513 - 2²¹ = 120067361 is a prime.

It is not a weakly prime, because it can be changed into another prime (122164013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61082256 + 61082257.

It is an arithmetic number, because the mean of its divisors is an integer number (61082257).

Almost surely, 2^122164513 is an apocalyptic number.

It is an amenable number.

122164513 is a deficient number, since it is larger than the sum of its proper divisors (1).

122164513 is an equidigital number, since it uses as much as digits as its factorization.

122164513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 25.

The square root of 122164513 is about 11052.8056619123. The cubic root of 122164513 is about 496.1903982544.

The spelling of 122164513 in words is "one hundred twenty-two million, one hundred sixty-four thousand, five hundred thirteen".