136542480 has 80 divisors (see below), whose sum is σ = 426431040. Its totient is φ = 36140544.

The previous prime is 136542437. The next prime is 136542491. The reversal of 136542480 is 84245631.

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

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, 31314 + ... + 35406.

It is an arithmetic number, because the mean of its divisors is an integer number (5330388).

Almost surely, 2^136542480 is an apocalyptic number.

136542480 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 136542480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213215520).

136542480 is an abundant number, since it is smaller than the sum of its proper divisors (289888560).

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

136542480 is a wasteful number, since it uses less digits than its factorization.

136542480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4248 (or 4242 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 136542480 is about 11685.1392802996. The cubic root of 136542480 is about 514.9391702433.

The spelling of 136542480 in words is "one hundred thirty-six million, five hundred forty-two thousand, four hundred eighty".