135822147 has 4 divisors (see below), whose sum is σ = 181096200. Its totient is φ = 90548096.

The previous prime is 135822139. The next prime is 135822149. The reversal of 135822147 is 741228531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135822147 - 2³ = 135822139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135822149) 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, 22637022 + ... + 22637027.

It is an arithmetic number, because the mean of its divisors is an integer number (45274050).

Almost surely, 2^135822147 is an apocalyptic number.

135822147 is a deficient number, since it is larger than the sum of its proper divisors (45274053).

135822147 is an equidigital number, since it uses as much as digits as its factorization.

135822147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45274052.

The product of its digits is 13440, while the sum is 33.

The square root of 135822147 is about 11654.2759105832. The cubic root of 135822147 is about 514.0320487014.

The spelling of 135822147 in words is "one hundred thirty-five million, eight hundred twenty-two thousand, one hundred forty-seven".