136546561 has 8 divisors (see below), whose sum is σ = 144491904. Its totient is φ = 128768640.

The previous prime is 136546549. The next prime is 136546633. The reversal of 136546561 is 165645631.

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 136546561 - 2⁷ = 136546433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136546561.

It is not an unprimeable number, because it can be changed into a prime (136546541) 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, 40176 + ... + 43441.

It is an arithmetic number, because the mean of its divisors is an integer number (18061488).

Almost surely, 2^136546561 is an apocalyptic number.

It is an amenable number.

136546561 is a deficient number, since it is larger than the sum of its proper divisors (7945343).

136546561 is an equidigital number, since it uses as much as digits as its factorization.

136546561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83711.

The product of its digits is 64800, while the sum is 37.

The square root of 136546561 is about 11685.3139025017. The cubic root of 136546561 is about 514.9443003826.

The spelling of 136546561 in words is "one hundred thirty-six million, five hundred forty-six thousand, five hundred sixty-one".