135215449 has 8 divisors (see below), whose sum is σ = 136604160. Its totient is φ = 133832400.

The previous prime is 135215441. The next prime is 135215477. The reversal of 135215449 is 944512531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135215449 - 2³ = 135215441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135215441) 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 7 ways as a sum of consecutive naturals, for example, 59272 + ... + 61510.

It is an arithmetic number, because the mean of its divisors is an integer number (17075520).

Almost surely, 2^135215449 is an apocalyptic number.

It is an amenable number.

135215449 is a deficient number, since it is larger than the sum of its proper divisors (1388711).

135215449 is a wasteful number, since it uses less digits than its factorization.

135215449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2831.

The product of its digits is 21600, while the sum is 34.

The square root of 135215449 is about 11628.2177912181. The cubic root of 135215449 is about 513.2655371851.

The spelling of 135215449 in words is "one hundred thirty-five million, two hundred fifteen thousand, four hundred forty-nine".