135250447 has 4 divisors (see below), whose sum is σ = 135323496. Its totient is φ = 135177400.

The previous prime is 135250441. The next prime is 135250469. The reversal of 135250447 is 744052531.

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 135250447 - 2³ = 135250439 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135250441) 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, 33673 + ... + 37474.

It is an arithmetic number, because the mean of its divisors is an integer number (33830874).

Almost surely, 2^135250447 is an apocalyptic number.

135250447 is a deficient number, since it is larger than the sum of its proper divisors (73049).

135250447 is an equidigital number, since it uses as much as digits as its factorization.

135250447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73048.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 135250447 is about 11629.7225676282. The cubic root of 135250447 is about 513.3098164392.

The spelling of 135250447 in words is "one hundred thirty-five million, two hundred fifty thousand, four hundred forty-seven".