8135424 has 144 divisors (see below), whose sum is σ = 26490240. Its totient is φ = 2442240.

The previous prime is 8135417. The next prime is 8135429. The reversal of 8135424 is 4245318.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (8135429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75979 + ... + 76085.

It is an arithmetic number, because the mean of its divisors is an integer number (183960).

Almost surely, 2^8135424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8135424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13245120).

8135424 is an abundant number, since it is smaller than the sum of its proper divisors (18354816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8135424 is a wasteful number, since it uses less digits than its factorization.

8135424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 123 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 8135424 is about 2852.2664672152. The cubic root of 8135424 is about 201.1222246153.

The spelling of 8135424 in words is "eight million, one hundred thirty-five thousand, four hundred twenty-four".