135155215 has 24 divisors (see below), whose sum is σ = 176532048. Its totient is φ = 99290880.

The previous prime is 135155213. The next prime is 135155233. The reversal of 135155215 is 512551531.

It is not a de Polignac number, because 135155215 - 2¹ = 135155213 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 (135155213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 259155 + ... + 259675.

It is an arithmetic number, because the mean of its divisors is an integer number (7355502).

Almost surely, 2^135155215 is an apocalyptic number.

135155215 is a deficient number, since it is larger than the sum of its proper divisors (41376833).

135155215 is a wasteful number, since it uses less digits than its factorization.

135155215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859 (or 846 counting only the distinct ones).

The product of its digits is 3750, while the sum is 28.

The square root of 135155215 is about 11625.6275099454. The cubic root of 135155215 is about 513.1893116048.

The spelling of 135155215 in words is "one hundred thirty-five million, one hundred fifty-five thousand, two hundred fifteen".