36139568 has 40 divisors (see below), whose sum is σ = 73522080. Its totient is φ = 17185280.

The previous prime is 36139567. The next prime is 36139613. The reversal of 36139568 is 86593163.

It is not an unprimeable number, because it can be changed into a prime (36139567) 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 7 ways as a sum of consecutive naturals, for example, 32396 + ... + 33492.

It is an arithmetic number, because the mean of its divisors is an integer number (1838052).

Almost surely, 2^36139568 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 36139568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36761040).

36139568 is an abundant number, since it is smaller than the sum of its proper divisors (37382512).

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

36139568 is a wasteful number, since it uses less digits than its factorization.

36139568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205 (or 1199 counting only the distinct ones).

The product of its digits is 116640, while the sum is 41.

The square root of 36139568 is about 6011.6194157648. The cubic root of 36139568 is about 330.6188814779.

The spelling of 36139568 in words is "thirty-six million, one hundred thirty-nine thousand, five hundred sixty-eight".