136224019542 has 64 divisors (see below), whose sum is σ = 302136791040. Its totient is φ = 40678483200.

The previous prime is 136224019513. The next prime is 136224019543. The reversal of 136224019542 is 245910422631.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 136224019542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136224019543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 499309 + ... + 722327.

It is an arithmetic number, because the mean of its divisors is an integer number (4720887360).

Almost surely, 2^136224019542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136224019542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151068395520).

136224019542 is an abundant number, since it is smaller than the sum of its proper divisors (165912771498).

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

136224019542 is a wasteful number, since it uses less digits than its factorization.

136224019542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223269.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 136224019542 in words is "one hundred thirty-six billion, two hundred twenty-four million, nineteen thousand, five hundred forty-two".