136720180 has 48 divisors (see below), whose sum is σ = 301222656. Its totient is φ = 52064640.

The previous prime is 136720151. The next prime is 136720201. The reversal of 136720180 is 81027631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32815 + ... + 36745.

It is an arithmetic number, because the mean of its divisors is an integer number (6275472).

Almost surely, 2^136720180 is an apocalyptic number.

136720180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136720180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150611328).

136720180 is an abundant number, since it is smaller than the sum of its proper divisors (164502476).

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

136720180 is a wasteful number, since it uses less digits than its factorization.

136720180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024 (or 4022 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 136720180 is about 11692.7404828808. The cubic root of 136720180 is about 515.1624585652.

It can be divided in two parts, 136720 and 180, that added together give a square (136900 = 370²).

The spelling of 136720180 in words is "one hundred thirty-six million, seven hundred twenty thousand, one hundred eighty".