122553342135 has 72 divisors (see below), whose sum is σ = 255628638720. Its totient is φ = 54092481408.

The previous prime is 122553342113. The next prime is 122553342143. The reversal of 122553342135 is 531243355221.

122553342135 is a `hidden beast` number, since 1 + 22 + 553 + 34 + 21 + 35 = 666.

It is not a de Polignac number, because 122553342135 - 2³⁴ = 105373472951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122553342135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 894327 + ... + 1022216.

It is an arithmetic number, because the mean of its divisors is an integer number (3550397760).

Almost surely, 2^122553342135 is an apocalyptic number.

122553342135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122553342135 is an abundant number, since it is smaller than the sum of its proper divisors (133075296585).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122553342135 is a wasteful number, since it uses less digits than its factorization.

122553342135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916597 (or 1916587 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

Adding to 122553342135 its reverse (531243355221), we get a palindrome (653796697356).

The spelling of 122553342135 in words is "one hundred twenty-two billion, five hundred fifty-three million, three hundred forty-two thousand, one hundred thirty-five".