135490215 has 32 divisors (see below), whose sum is σ = 249361920. Its totient is φ = 61536384.

The previous prime is 135490193. The next prime is 135490219. The reversal of 135490215 is 512094531.

It is not a de Polignac number, because 135490215 - 2⁶ = 135490151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135490219) 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 31 ways as a sum of consecutive naturals, for example, 12376 + ... + 20594.

It is an arithmetic number, because the mean of its divisors is an integer number (7792560).

Almost surely, 2^135490215 is an apocalyptic number.

135490215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135490215 is a deficient number, since it is larger than the sum of its proper divisors (113871705).

135490215 is a wasteful number, since it uses less digits than its factorization.

135490215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8391.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 135490215 is about 11640.0264174958. The cubic root of 135490215 is about 513.6129642027.

The spelling of 135490215 in words is "one hundred thirty-five million, four hundred ninety thousand, two hundred fifteen".