136061723 has 4 divisors (see below), whose sum is σ = 155499120. Its totient is φ = 116624328.

The previous prime is 136061713. The next prime is 136061741. The reversal of 136061723 is 327160631.

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

It is a cyclic number.

It is not a de Polignac number, because 136061723 - 2⁸ = 136061467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136061713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9718688 + ... + 9718701.

It is an arithmetic number, because the mean of its divisors is an integer number (38874780).

Almost surely, 2^136061723 is an apocalyptic number.

136061723 is a deficient number, since it is larger than the sum of its proper divisors (19437397).

136061723 is an equidigital number, since it uses as much as digits as its factorization.

136061723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19437396.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 136061723 is about 11664.5498412926. The cubic root of 136061723 is about 514.3341040190.

The spelling of 136061723 in words is "one hundred thirty-six million, sixty-one thousand, seven hundred twenty-three".