136054813 has 4 divisors (see below), whose sum is σ = 136624320. Its totient is φ = 135485308.

The previous prime is 136054811. The next prime is 136054829. The reversal of 136054813 is 318450631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 136054813 - 2¹ = 136054811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136054811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284395 + ... + 284872.

It is an arithmetic number, because the mean of its divisors is an integer number (34156080).

Almost surely, 2^136054813 is an apocalyptic number.

It is an amenable number.

136054813 is a deficient number, since it is larger than the sum of its proper divisors (569507).

136054813 is an equidigital number, since it uses as much as digits as its factorization.

136054813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569506.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 136054813 is about 11664.2536409322. The cubic root of 136054813 is about 514.3253969196.

The spelling of 136054813 in words is "one hundred thirty-six million, fifty-four thousand, eight hundred thirteen".