136480521 has 8 divisors (see below), whose sum is σ = 184019040. Its totient is φ = 89964512.

The previous prime is 136480517. The next prime is 136480543. The reversal of 136480521 is 125084631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136480521 - 2² = 136480517 is a prime.

It is a super-3 number, since 3×136480521³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (136480501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255315 + ... + 255848.

It is an arithmetic number, because the mean of its divisors is an integer number (23002380).

Almost surely, 2^136480521 is an apocalyptic number.

It is an amenable number.

136480521 is a deficient number, since it is larger than the sum of its proper divisors (47538519).

136480521 is an equidigital number, since it uses as much as digits as its factorization.

136480521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511255.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 136480521 is about 11682.4877915622. The cubic root of 136480521 is about 514.8612703274.

The spelling of 136480521 in words is "one hundred thirty-six million, four hundred eighty thousand, five hundred twenty-one".