135152513 has 4 divisors (see below), whose sum is σ = 135238740. Its totient is φ = 135066288.

The previous prime is 135152497. The next prime is 135152561. The reversal of 135152513 is 315251531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 315251531 = 7 ⋅45035933.

It can be written as a sum of positive squares in 2 ways, for example, as 87928129 + 47224384 = 9377^2 + 6872^2 .

It is a cyclic number.

It is not a de Polignac number, because 135152513 - 2⁴ = 135152497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135152573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40718 + ... + 43911.

It is an arithmetic number, because the mean of its divisors is an integer number (33809685).

Almost surely, 2^135152513 is an apocalyptic number.

It is an amenable number.

135152513 is a deficient number, since it is larger than the sum of its proper divisors (86227).

135152513 is an equidigital number, since it uses as much as digits as its factorization.

135152513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86226.

The product of its digits is 2250, while the sum is 26.

The square root of 135152513 is about 11625.5113005837. The cubic root of 135152513 is about 513.1858917176.

The spelling of 135152513 in words is "one hundred thirty-five million, one hundred fifty-two thousand, five hundred thirteen".