136671485 has 4 divisors (see below), whose sum is σ = 164005788. Its totient is φ = 109337184.

The previous prime is 136671481. The next prime is 136671487. The reversal of 136671485 is 584176631.

136671485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 584176631 = 137 ⋅4264063.

It can be written as a sum of positive squares in 2 ways, for example, as 99960004 + 36711481 = 9998^2 + 6059^2 .

It is a cyclic number.

It is not a de Polignac number, because 136671485 - 2² = 136671481 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 (136671481) 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, 13667144 + ... + 13667153.

It is an arithmetic number, because the mean of its divisors is an integer number (41001447).

Almost surely, 2^136671485 is an apocalyptic number.

It is an amenable number.

136671485 is a deficient number, since it is larger than the sum of its proper divisors (27334303).

136671485 is an equidigital number, since it uses as much as digits as its factorization.

136671485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27334302.

The product of its digits is 120960, while the sum is 41.

The square root of 136671485 is about 11690.6580225409. The cubic root of 136671485 is about 515.1012902852.

The spelling of 136671485 in words is "one hundred thirty-six million, six hundred seventy-one thousand, four hundred eighty-five".