136365723 has 24 divisors (see below), whose sum is σ = 212520672. Its totient is φ = 83760768.

The previous prime is 136365709. The next prime is 136365727. The reversal of 136365723 is 327563631.

136365723 is a `hidden beast` number, since 13 + 636 + 5 + 7 + 2 + 3 = 666.

It is not a de Polignac number, because 136365723 - 2⁴ = 136365707 is a prime.

It is a super-2 number, since 2×136365723² = 37191220818625458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136365727) 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 23 ways as a sum of consecutive naturals, for example, 110890 + ... + 112112.

It is an arithmetic number, because the mean of its divisors is an integer number (8855028).

Almost surely, 2^136365723 is an apocalyptic number.

136365723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

136365723 is a deficient number, since it is larger than the sum of its proper divisors (76154949).

136365723 is a wasteful number, since it uses less digits than its factorization.

136365723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195 (or 2192 counting only the distinct ones).

The product of its digits is 68040, while the sum is 36.

The square root of 136365723 is about 11677.5735065124. The cubic root of 136365723 is about 514.7168745725.

The spelling of 136365723 in words is "one hundred thirty-six million, three hundred sixty-five thousand, seven hundred twenty-three".