136312305 has 16 divisors (see below), whose sum is σ = 218332800. Its totient is φ = 72622208.

The previous prime is 136312303. The next prime is 136312333. The reversal of 136312305 is 503213631.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 136312305 - 2¹ = 136312303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136312303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11404 + ... + 20066.

It is an arithmetic number, because the mean of its divisors is an integer number (13645800).

Almost surely, 2^136312305 is an apocalyptic number.

136312305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136312305 is a deficient number, since it is larger than the sum of its proper divisors (82020495).

136312305 is a wasteful number, since it uses less digits than its factorization.

136312305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9720.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 136312305 is about 11675.2860778655. The cubic root of 136312305 is about 514.6496564663.

Adding to 136312305 its reverse (503213631), we get a palindrome (639525936).

The spelling of 136312305 in words is "one hundred thirty-six million, three hundred twelve thousand, three hundred five".