135406801485 has 24 divisors (see below), whose sum is σ = 235921226424. Its totient is φ = 71842775040.

The previous prime is 135406801477. The next prime is 135406801487. The reversal of 135406801485 is 584108604531.

135406801485 is a `hidden beast` number, since 1 + 3 + 540 + 68 + 0 + 1 + 48 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7290768996 + 128116032489 = 85386^2 + 357933^2 .

It is not a de Polignac number, because 135406801485 - 2³ = 135406801477 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 135406801485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135406801487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7786756 + ... + 7804125.

It is an arithmetic number, because the mean of its divisors is an integer number (9830051101).

Almost surely, 2^135406801485 is an apocalyptic number.

135406801485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135406801485 is a deficient number, since it is larger than the sum of its proper divisors (100514424939).

135406801485 is a wasteful number, since it uses less digits than its factorization.

135406801485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15591085 (or 15591082 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 135406801485 in words is "one hundred thirty-five billion, four hundred six million, eight hundred one thousand, four hundred eighty-five".