135479565 has 24 divisors (see below), whose sum is σ = 252896280. Its totient is φ = 66697344.

The previous prime is 135479563. The next prime is 135479567. The reversal of 135479565 is 565974531.

135479565 is a `hidden beast` number, since 13 + 5 + 4 + 79 + 565 = 666.

It is an interprime number because it is at equal distance from previous prime (135479563) and next prime (135479567).

It can be written as a sum of positive squares in 4 ways, for example, as 617796 + 134861769 = 786^2 + 11613^2 .

It is not a de Polignac number, because 135479565 - 2¹ = 135479563 is a prime.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 135479565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135479563) 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, 115210 + ... + 116379.

It is an arithmetic number, because the mean of its divisors is an integer number (10537345).

Almost surely, 2^135479565 is an apocalyptic number.

135479565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135479565 is a deficient number, since it is larger than the sum of its proper divisors (117416715).

135479565 is a wasteful number, since it uses less digits than its factorization.

135479565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231613 (or 231610 counting only the distinct ones).

The product of its digits is 567000, while the sum is 45.

The square root of 135479565 is about 11639.5689353171. The cubic root of 135479565 is about 513.5995065976.

The spelling of 135479565 in words is "one hundred thirty-five million, four hundred seventy-nine thousand, five hundred sixty-five".