136561116 has 48 divisors (see below), whose sum is σ = 334333440. Its totient is φ = 43323840.

The previous prime is 136561111. The next prime is 136561121. The reversal of 136561116 is 611165631.

It is an interprime number because it is at equal distance from previous prime (136561111) and next prime (136561121).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136561111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21945 + ... + 27471.

It is an arithmetic number, because the mean of its divisors is an integer number (6965280).

Almost surely, 2^136561116 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 136561116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167166720).

136561116 is an abundant number, since it is smaller than the sum of its proper divisors (197772324).

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

136561116 is a wasteful number, since it uses less digits than its factorization.

136561116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5634 (or 5632 counting only the distinct ones).

The product of its digits is 3240, while the sum is 30.

The square root of 136561116 is about 11685.9366761933. The cubic root of 136561116 is about 514.9625963346.

It can be divided in two parts, 1365 and 61116, that added together give a triangular number (62481 = T₃₅₃).

The spelling of 136561116 in words is "one hundred thirty-six million, five hundred sixty-one thousand, one hundred sixteen".