135312015 has 16 divisors (see below), whose sum is σ = 227894400. Its totient is φ = 68368032.

The previous prime is 135311989. The next prime is 135312029. The reversal of 135312015 is 510213531.

It is not a de Polignac number, because 135312015 - 2⁷ = 135311887 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135311982 and 135312000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237105 + ... + 237674.

It is an arithmetic number, because the mean of its divisors is an integer number (14243400).

Almost surely, 2^135312015 is an apocalyptic number.

135312015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135312015 is a deficient number, since it is larger than the sum of its proper divisors (92582385).

135312015 is a wasteful number, since it uses less digits than its factorization.

135312015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474806.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 135312015 is about 11632.3692771507. The cubic root of 135312015 is about 513.3876933587.

Adding to 135312015 its reverse (510213531), we get a palindrome (645525546).

The spelling of 135312015 in words is "one hundred thirty-five million, three hundred twelve thousand, fifteen".