136361442 has 64 divisors (see below), whose sum is σ = 331361280. Its totient is φ = 36542016.

The previous prime is 136361441. The next prime is 136361453. The reversal of 136361442 is 244163631.

It is not an unprimeable number, because it can be changed into a prime (136361441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84588 + ... + 86184.

It is an arithmetic number, because the mean of its divisors is an integer number (5177520).

Almost surely, 2^136361442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136361442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165680640).

136361442 is an abundant number, since it is smaller than the sum of its proper divisors (194999838).

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

136361442 is a wasteful number, since it uses less digits than its factorization.

136361442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735.

The product of its digits is 10368, while the sum is 30.

The square root of 136361442 is about 11677.3902050073. The cubic root of 136361442 is about 514.7114882580.

The spelling of 136361442 in words is "one hundred thirty-six million, three hundred sixty-one thousand, four hundred forty-two".