135352215 has 48 divisors (see below), whose sum is σ = 257650848. Its totient is φ = 67931136.

The previous prime is 135352211. The next prime is 135352247. The reversal of 135352215 is 512253531.

It is a happy number.

135352215 is a `hidden beast` number, since 135 + 3 + 522 + 1 + 5 = 666.

It is not a de Polignac number, because 135352215 - 2² = 135352211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135352211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17379 + ... + 23931.

It is an arithmetic number, because the mean of its divisors is an integer number (5367726).

Almost surely, 2^135352215 is an apocalyptic number.

135352215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135352215 is a deficient number, since it is larger than the sum of its proper divisors (122298633).

135352215 is an equidigital number, since it uses as much as digits as its factorization.

135352215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6590 (or 6578 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 135352215 is about 11634.0970857218. The cubic root of 135352215 is about 513.4385293021.

The spelling of 135352215 in words is "one hundred thirty-five million, three hundred fifty-two thousand, two hundred fifteen".