135210015 has 24 divisors (see below), whose sum is σ = 236562768. Its totient is φ = 71435520.

The previous prime is 135209989. The next prime is 135210059. The reversal of 135210015 is 510012531.

It is not a de Polignac number, because 135210015 - 2¹³ = 135201823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135210015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9226 + ... + 18855.

It is an arithmetic number, because the mean of its divisors is an integer number (9856782).

Almost surely, 2^135210015 is an apocalyptic number.

135210015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135210015 is a deficient number, since it is larger than the sum of its proper divisors (101352753).

135210015 is a wasteful number, since it uses less digits than its factorization.

135210015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28199 (or 28196 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 135210015 is about 11627.9841331161. The cubic root of 135210015 is about 513.2586614365.

Adding to 135210015 its reverse (510012531), we get a palindrome (645222546).

The spelling of 135210015 in words is "one hundred thirty-five million, two hundred ten thousand, fifteen".