136995865 has 4 divisors (see below), whose sum is σ = 164395044. Its totient is φ = 109596688.

The previous prime is 136995853. The next prime is 136995869. The reversal of 136995865 is 568599631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 106998336 + 29997529 = 10344^2 + 5477^2 .

It is a cyclic number.

It is not a de Polignac number, because 136995865 - 2¹³ = 136987673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136995869) 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, 13699582 + ... + 13699591.

It is an arithmetic number, because the mean of its divisors is an integer number (41098761).

Almost surely, 2^136995865 is an apocalyptic number.

It is an amenable number.

136995865 is a deficient number, since it is larger than the sum of its proper divisors (27399179).

136995865 is an equidigital number, since it uses as much as digits as its factorization.

136995865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27399178.

The product of its digits is 1749600, while the sum is 52.

The square root of 136995865 is about 11704.5232709410. The cubic root of 136995865 is about 515.5084870014.

The spelling of 136995865 in words is "one hundred thirty-six million, nine hundred ninety-five thousand, eight hundred sixty-five".