135265420514025 has 36 divisors (see below), whose sum is σ = 242276058419200. Its totient is φ = 72141360847200.

The previous prime is 135265420513969. The next prime is 135265420514069. The reversal of 135265420514025 is 520415024562531.

135265420514025 is a `hidden beast` number, since 1 + 3 + 5 + 2 + 65 + 420 + 5 + 140 + 25 = 666.

It is not a de Polignac number, because 135265420514025 - 2²⁴ = 135265403736809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 123987876 + ... + 125074074.

Almost surely, 2^{135265420514025} is an apocalyptic number.

135265420514025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135265420514025 is a deficient number, since it is larger than the sum of its proper divisors (107010637905175).

135265420514025 is a wasteful number, since it uses less digits than its factorization.

135265420514025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639686 (or 1639678 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 45.

The spelling of 135265420514025 in words is "one hundred thirty-five trillion, two hundred sixty-five billion, four hundred twenty million, five hundred fourteen thousand, twenty-five".