122045513 has 2 divisors, whose sum is σ = 122045514. Its totient is φ = 122045512.

The previous prime is 122045507. The next prime is 122045519. The reversal of 122045513 is 315540221.

It is a balanced prime because it is at equal distance from previous prime (122045507) and next prime (122045519).

It can be written as a sum of positive squares in only one way, i.e., 76510009 + 45535504 = 8747^2 + 6748^2 .

It is an emirp because it is prime and its reverse (315540221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122045513 - 2⁶ = 122045449 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (122045519) 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 as a sum of consecutive naturals, namely, 61022756 + 61022757.

It is an arithmetic number, because the mean of its divisors is an integer number (61022757).

Almost surely, 2^122045513 is an apocalyptic number.

It is an amenable number.

122045513 is a deficient number, since it is larger than the sum of its proper divisors (1).

122045513 is an equidigital number, since it uses as much as digits as its factorization.

122045513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 122045513 is about 11047.4211017776. The cubic root of 122045513 is about 496.0292335029.

Adding to 122045513 its reverse (315540221), we get a palindrome (437585734).

The spelling of 122045513 in words is "one hundred twenty-two million, forty-five thousand, five hundred thirteen".