122154135241513 has 2 divisors, whose sum is σ = 122154135241514. Its totient is φ = 122154135241512.

The previous prime is 122154135241507. The next prime is 122154135241517. The reversal of 122154135241513 is 315142531451221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83874770272489 + 38279364969024 = 9158317^2 + 6187032^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122154135241513 is a prime.

It is not a weakly prime, because it can be changed into another prime (122154135241517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61077067620756 + 61077067620757.

It is an arithmetic number, because the mean of its divisors is an integer number (61077067620757).

Almost surely, 2^{122154135241513} is an apocalyptic number.

It is an amenable number.

122154135241513 is a deficient number, since it is larger than the sum of its proper divisors (1).

122154135241513 is an equidigital number, since it uses as much as digits as its factorization.

122154135241513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144000, while the sum is 40.

Adding to 122154135241513 its reverse (315142531451221), we get a palindrome (437296666692734).

The spelling of 122154135241513 in words is "one hundred twenty-two trillion, one hundred fifty-four billion, one hundred thirty-five million, two hundred forty-one thousand, five hundred thirteen".