122464813 has 2 divisors, whose sum is σ = 122464814. Its totient is φ = 122464812.

The previous prime is 122464777. The next prime is 122464829. The reversal of 122464813 is 318464221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87572164 + 34892649 = 9358^2 + 5907^2 .

It is an emirp because it is prime and its reverse (318464221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122464813 - 2¹⁷ = 122333741 is a prime.

It is a super-3 number, since 3×122464813³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122464843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61232406 + 61232407.

It is an arithmetic number, because the mean of its divisors is an integer number (61232407).

Almost surely, 2^122464813 is an apocalyptic number.

It is an amenable number.

122464813 is a deficient number, since it is larger than the sum of its proper divisors (1).

122464813 is an equidigital number, since it uses as much as digits as its factorization.

122464813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 31.

The square root of 122464813 is about 11066.3821097954. The cubic root of 122464813 is about 496.5966374747.

The spelling of 122464813 in words is "one hundred twenty-two million, four hundred sixty-four thousand, eight hundred thirteen".