136249065 has 24 divisors (see below), whose sum is σ = 239016960. Its totient is φ = 71788704.

The previous prime is 136249049. The next prime is 136249073. The reversal of 136249065 is 560942631.

It is a happy number.

It is not a de Polignac number, because 136249065 - 2⁴ = 136249049 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 14505 + ... + 21974.

It is an arithmetic number, because the mean of its divisors is an integer number (9959040).

Almost surely, 2^136249065 is an apocalyptic number.

136249065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136249065 is a deficient number, since it is larger than the sum of its proper divisors (102767895).

136249065 is a wasteful number, since it uses less digits than its factorization.

136249065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36573 (or 36570 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 136249065 is about 11672.5774788604. The cubic root of 136249065 is about 514.5700562210.

The spelling of 136249065 in words is "one hundred thirty-six million, two hundred forty-nine thousand, sixty-five".