135425215 has 8 divisors (see below), whose sum is σ = 168114240. Its totient is φ = 104604192.

The previous prime is 135425209. The next prime is 135425221. The reversal of 135425215 is 512524531.

135425215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (135425209) and next prime (135425221).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135425215 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466839 + ... + 467128.

It is an arithmetic number, because the mean of its divisors is an integer number (21014280).

Almost surely, 2^135425215 is an apocalyptic number.

135425215 is a deficient number, since it is larger than the sum of its proper divisors (32689025).

135425215 is an equidigital number, since it uses as much as digits as its factorization.

135425215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934001.

The product of its digits is 6000, while the sum is 28.

The square root of 135425215 is about 11637.2339926634. The cubic root of 135425215 is about 513.5308175995.

Adding to 135425215 its reverse (512524531), we get a palindrome (647949746).

It can be divided in two parts, 1354 and 25215, that added together give a square (26569 = 163²).

The spelling of 135425215 in words is "one hundred thirty-five million, four hundred twenty-five thousand, two hundred fifteen".