135847471 has 4 divisors (see below), whose sum is σ = 135911232. Its totient is φ = 135783712.

The previous prime is 135847447. The next prime is 135847477. The reversal of 135847471 is 174748531.

It is a happy number.

135847471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 174748531 = 1597 ⋅109423.

It is a cyclic number.

It is not a de Polignac number, because 135847471 - 2⁹ = 135846959 is a prime.

It is a super-3 number, since 3×135847471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135847477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28570 + ... + 32983.

It is an arithmetic number, because the mean of its divisors is an integer number (33977808).

Almost surely, 2^135847471 is an apocalyptic number.

135847471 is a deficient number, since it is larger than the sum of its proper divisors (63761).

135847471 is an equidigital number, since it uses as much as digits as its factorization.

135847471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63760.

The product of its digits is 94080, while the sum is 40.

The square root of 135847471 is about 11655.3623281303. The cubic root of 135847471 is about 514.0639937583.

The spelling of 135847471 in words is "one hundred thirty-five million, eight hundred forty-seven thousand, four hundred seventy-one".