136075920 has 80 divisors (see below), whose sum is σ = 427234560. Its totient is φ = 35822592.

The previous prime is 136075913. The next prime is 136075921. The reversal of 136075920 is 29570631.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (136075921) 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, 15372 + ... + 22548.

It is an arithmetic number, because the mean of its divisors is an integer number (5340432).

Almost surely, 2^136075920 is an apocalyptic number.

136075920 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 136075920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213617280).

136075920 is an abundant number, since it is smaller than the sum of its proper divisors (291158640).

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

136075920 is a wasteful number, since it uses less digits than its factorization.

136075920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7272 (or 7266 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 136075920 is about 11665.1583786934. The cubic root of 136075920 is about 514.3519923399.

The spelling of 136075920 in words is "one hundred thirty-six million, seventy-five thousand, nine hundred twenty".