136758821225 has 24 divisors (see below), whose sum is σ = 183212981952. Its totient is φ = 100666324800.

The previous prime is 136758821189. The next prime is 136758821233. The reversal of 136758821225 is 522128857631.

It is not a de Polignac number, because 136758821225 - 2⁶ = 136758821161 is a prime.

It is a super-4 number, since 4×136758821225⁴ (a number of 46 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 575447 + ... + 777596.

It is an arithmetic number, because the mean of its divisors is an integer number (7633874248).

Almost surely, 2^136758821225 is an apocalyptic number.

It is an amenable number.

136758821225 is a deficient number, since it is larger than the sum of its proper divisors (46454160727).

136758821225 is a wasteful number, since it uses less digits than its factorization.

136758821225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353377 (or 1353372 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 50.

The spelling of 136758821225 in words is "one hundred thirty-six billion, seven hundred fifty-eight million, eight hundred twenty-one thousand, two hundred twenty-five".