135454815 has 16 divisors (see below), whose sum is σ = 240808800. Its totient is φ = 72242496.

The previous prime is 135454811. The next prime is 135454829. The reversal of 135454815 is 518454531.

135454815 is a `hidden beast` number, since 135 + 45 + 481 + 5 = 666.

It is not a de Polignac number, because 135454815 - 2² = 135454811 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 135454815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135454811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 501550 + ... + 501819.

It is an arithmetic number, because the mean of its divisors is an integer number (15050550).

Almost surely, 2^135454815 is an apocalyptic number.

135454815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135454815 is a deficient number, since it is larger than the sum of its proper divisors (105353985).

135454815 is a wasteful number, since it uses less digits than its factorization.

135454815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003383 (or 1003377 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 135454815 is about 11638.5057030531. The cubic root of 135454815 is about 513.5682291575.

It can be divided in two parts, 1354 and 54815, that added together give a square (56169 = 237²).

The spelling of 135454815 in words is "one hundred thirty-five million, four hundred fifty-four thousand, eight hundred fifteen".