136179438 has 16 divisors (see below), whose sum is σ = 272868816. Its totient is φ = 45308160.

The previous prime is 136179437. The next prime is 136179457. The reversal of 136179438 is 834971631.

It is a self number, because there is not a number n which added to its sum of digits gives 136179438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136179437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17731 + ... + 24222.

It is an arithmetic number, because the mean of its divisors is an integer number (17054301).

Almost surely, 2^136179438 is an apocalyptic number.

136179438 is an abundant number, since it is smaller than the sum of its proper divisors (136689378).

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

136179438 is a wasteful number, since it uses less digits than its factorization.

136179438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42499.

The product of its digits is 108864, while the sum is 42.

The square root of 136179438 is about 11669.5945945007. The cubic root of 136179438 is about 514.4823881599.

The spelling of 136179438 in words is "one hundred thirty-six million, one hundred seventy-nine thousand, four hundred thirty-eight".