136551 has 8 divisors (see below), whose sum is σ = 190080. Its totient is φ = 87032.

The previous prime is 136547. The next prime is 136559. The reversal of 136551 is 155631.

It is a happy number.

136551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 136551 - 2² = 136547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136559) 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, 921 + ... + 1058.

It is an arithmetic number, because the mean of its divisors is an integer number (23760).

2¹³⁶⁵⁵¹ is an apocalyptic number.

136551 is a deficient number, since it is larger than the sum of its proper divisors (53529).

136551 is a wasteful number, since it uses less digits than its factorization.

136551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005.

The product of its digits is 450, while the sum is 21.

The square root of 136551 is about 369.5280774177. The cubic root of 136551 is about 51.4949880440.

The spelling of 136551 in words is "one hundred thirty-six thousand, five hundred fifty-one".