136437000389 has 4 divisors (see below), whose sum is σ = 140124486924. Its totient is φ = 132749513856.

The previous prime is 136437000373. The next prime is 136437000443. The reversal of 136437000389 is 983000734631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 983000734631 = 597437 ⋅1645363.

It can be written as a sum of positive squares in 2 ways, for example, as 125875944100 + 10561056289 = 354790^2 + 102767^2 .

It is a cyclic number.

It is not a de Polignac number, because 136437000389 - 2⁴ = 136437000373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136437000989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1843743212 + ... + 1843743285.

It is an arithmetic number, because the mean of its divisors is an integer number (35031121731).

Almost surely, 2^136437000389 is an apocalyptic number.

It is an amenable number.

136437000389 is a deficient number, since it is larger than the sum of its proper divisors (3687486535).

136437000389 is an equidigital number, since it uses as much as digits as its factorization.

136437000389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3687486534.

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 136437000389 in words is "one hundred thirty-six billion, four hundred thirty-seven million, three hundred eighty-nine", and thus it is an aban number.