135478211 has 8 divisors (see below), whose sum is σ = 154220544. Its totient is φ = 117806920.

The previous prime is 135478199. The next prime is 135478241. The reversal of 135478211 is 112874531.

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

It is not a de Polignac number, because 135478211 - 2²² = 131283907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135478241) 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, 267491 + ... + 267996.

It is an arithmetic number, because the mean of its divisors is an integer number (19277568).

Almost surely, 2^135478211 is an apocalyptic number.

135478211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135478211 is a deficient number, since it is larger than the sum of its proper divisors (18742333).

135478211 is a wasteful number, since it uses less digits than its factorization.

135478211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535521.

The product of its digits is 6720, while the sum is 32.

The square root of 135478211 is about 11639.5107715058. The cubic root of 135478211 is about 513.5977955990.

The spelling of 135478211 in words is "one hundred thirty-five million, four hundred seventy-eight thousand, two hundred eleven".