136623039145 has 4 divisors (see below), whose sum is σ = 163947646980. Its totient is φ = 109298431312.

The previous prime is 136623039139. The next prime is 136623039167. The reversal of 136623039145 is 541930326631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541930326631 = 109 ⋅4971837859.

It can be written as a sum of positive squares in 2 ways, for example, as 31181909056 + 105441130089 = 176584^2 + 324717^2 .

It is a cyclic number.

It is not a de Polignac number, because 136623039145 - 2⁹ = 136623038633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13662303910 + ... + 13662303919.

It is an arithmetic number, because the mean of its divisors is an integer number (40986911745).

Almost surely, 2^136623039145 is an apocalyptic number.

It is an amenable number.

136623039145 is a deficient number, since it is larger than the sum of its proper divisors (27324607835).

136623039145 is an equidigital number, since it uses as much as digits as its factorization.

136623039145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27324607834.

The product of its (nonzero) digits is 349920, while the sum is 43.

The spelling of 136623039145 in words is "one hundred thirty-six billion, six hundred twenty-three million, thirty-nine thousand, one hundred forty-five".