135730025646 has 16 divisors (see below), whose sum is σ = 273532267008. Its totient is φ = 44897972600.

The previous prime is 135730025609. The next prime is 135730025653. The reversal of 135730025646 is 646520037531.

It is a junction number, because it is equal to n+sod(n) for n = 135730025598 and 135730025607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86341470 + ... + 86343041.

It is an arithmetic number, because the mean of its divisors is an integer number (17095766688).

Almost surely, 2^135730025646 is an apocalyptic number.

135730025646 is an abundant number, since it is smaller than the sum of its proper divisors (137802241362).

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

135730025646 is a wasteful number, since it uses less digits than its factorization.

135730025646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172684647.

The product of its (nonzero) digits is 453600, while the sum is 42.

The spelling of 135730025646 in words is "one hundred thirty-five billion, seven hundred thirty million, twenty-five thousand, six hundred forty-six".