136810481 has 8 divisors (see below), whose sum is σ = 140469504. Its totient is φ = 133166880.

The previous prime is 136810451. The next prime is 136810493. The reversal of 136810481 is 184018631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136810481 - 2¹⁸ = 136548337 is a prime.

It is a super-2 number, since 2×136810481² = 37434215422902722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136810451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15380 + ... + 22586.

It is an arithmetic number, because the mean of its divisors is an integer number (17558688).

Almost surely, 2^136810481 is an apocalyptic number.

It is an amenable number.

136810481 is a deficient number, since it is larger than the sum of its proper divisors (3659023).

136810481 is an equidigital number, since it uses as much as digits as its factorization.

136810481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7711.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 136810481 is about 11696.6012584853. The cubic root of 136810481 is about 515.2758518408.

The spelling of 136810481 in words is "one hundred thirty-six million, eight hundred ten thousand, four hundred eighty-one".