135121626 has 12 divisors (see below), whose sum is σ = 292763562. Its totient is φ = 45040536.

The previous prime is 135121603. The next prime is 135121631. The reversal of 135121626 is 626121531.

135121626 is a `hidden beast` number, since 1 + 35 + 1 + 2 + 1 + 626 = 666.

It can be written as a sum of positive squares in only one way, i.e., 115541001 + 19580625 = 10749^2 + 4425^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 135121626.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3753361 + ... + 3753396.

Almost surely, 2^135121626 is an apocalyptic number.

135121626 is an abundant number, since it is smaller than the sum of its proper divisors (157641936).

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

135121626 is a wasteful number, since it uses less digits than its factorization.

135121626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7506765 (or 7506762 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 135121626 is about 11624.1828099871. The cubic root of 135121626 is about 513.1467951939.

The spelling of 135121626 in words is "one hundred thirty-five million, one hundred twenty-one thousand, six hundred twenty-six".