135245015 has 4 divisors (see below), whose sum is σ = 162294024. Its totient is φ = 108196008.

The previous prime is 135245003. The next prime is 135245017. The reversal of 135245015 is 510542531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 510542531 = 337 ⋅1514963.

It is a cyclic number.

It is not a de Polignac number, because 135245015 - 2¹⁶ = 135179479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135245017) 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, 13524497 + ... + 13524506.

It is an arithmetic number, because the mean of its divisors is an integer number (40573506).

Almost surely, 2^135245015 is an apocalyptic number.

135245015 is a deficient number, since it is larger than the sum of its proper divisors (27049009).

135245015 is an equidigital number, since it uses as much as digits as its factorization.

135245015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27049008.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 135245015 is about 11629.4890257483. The cubic root of 135245015 is about 513.3029444071.

Adding to 135245015 its reverse (510542531), we get a palindrome (645787546).

The spelling of 135245015 in words is "one hundred thirty-five million, two hundred forty-five thousand, fifteen".