136012621 has 8 divisors (see below), whose sum is σ = 146664000. Its totient is φ = 125710560.

The previous prime is 136012619. The next prime is 136012637. The reversal of 136012621 is 126210631.

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 136012621 - 2¹ = 136012619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136012592 and 136012601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136012601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86521 + ... + 88078.

It is an arithmetic number, because the mean of its divisors is an integer number (18333000).

Almost surely, 2^136012621 is an apocalyptic number.

It is an amenable number.

136012621 is a deficient number, since it is larger than the sum of its proper divisors (10651379).

136012621 is a wasteful number, since it uses less digits than its factorization.

136012621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174659.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 136012621 is about 11662.4448980478. Note that the first 3 decimals coincide. The cubic root of 136012621 is about 514.2722255538.

The spelling of 136012621 in words is "one hundred thirty-six million, twelve thousand, six hundred twenty-one".