135540125235 has 24 divisors (see below), whose sum is σ = 234960648624. Its totient is φ = 72280549440.

The previous prime is 135540125221. The next prime is 135540125239. The reversal of 135540125235 is 532521045531.

135540125235 is a `hidden beast` number, since 1 + 35 + 540 + 1 + 2 + 52 + 35 = 666.

It is not a de Polignac number, because 135540125235 - 2⁷ = 135540125107 is a prime.

It is a super-2 number, since 2×135540125235² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135540125235.

It is not an unprimeable number, because it can be changed into a prime (135540125239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 295249 + ... + 598541.

It is an arithmetic number, because the mean of its divisors is an integer number (9790027026).

Almost surely, 2^135540125235 is an apocalyptic number.

135540125235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135540125235 is a deficient number, since it is larger than the sum of its proper divisors (99420523389).

135540125235 is a wasteful number, since it uses less digits than its factorization.

135540125235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313235 (or 313232 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 135540125235 in words is "one hundred thirty-five billion, five hundred forty million, one hundred twenty-five thousand, two hundred thirty-five".