1255135122 has 16 divisors (see below), whose sum is σ = 2789189280. Its totient is φ = 418378356.

The previous prime is 1255135121. The next prime is 1255135129. The reversal of 1255135122 is 2215315521.

1255135122 is a `hidden beast` number, since 1 + 25 + 513 + 5 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1255135121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11621568 + ... + 11621675.

It is an arithmetic number, because the mean of its divisors is an integer number (174324330).

Almost surely, 2^1255135122 is an apocalyptic number.

1255135122 is an abundant number, since it is smaller than the sum of its proper divisors (1534054158).

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

1255135122 is a wasteful number, since it uses less digits than its factorization.

1255135122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23243254 (or 23243248 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 1255135122 is about 35427.8862197563. The cubic root of 1255135122 is about 1078.6904343187.

The spelling of 1255135122 in words is "one billion, two hundred fifty-five million, one hundred thirty-five thousand, one hundred twenty-two".