136286688 has 144 divisors (see below), whose sum is σ = 395693424. Its totient is φ = 40919040.

The previous prime is 136286687. The next prime is 136286719. The reversal of 136286688 is 886682631.

It is a super-2 number, since 2×136286688² = 37148122652018688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136286687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2234178 + ... + 2234238.

It is an arithmetic number, because the mean of its divisors is an integer number (2747871).

Almost surely, 2^136286688 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 136286688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197846712).

136286688 is an abundant number, since it is smaller than the sum of its proper divisors (259406736).

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

136286688 is a wasteful number, since it uses less digits than its factorization.

136286688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 120 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The square root of 136286688 is about 11674.1889654057. The cubic root of 136286688 is about 514.6174152923.

The spelling of 136286688 in words is "one hundred thirty-six million, two hundred eighty-six thousand, six hundred eighty-eight".