136449659 has 8 divisors (see below), whose sum is σ = 143754240. Its totient is φ = 129157416.

The previous prime is 136449653. The next prime is 136449661. The reversal of 136449659 is 956944631.

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 136449659 - 2⁸ = 136449403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136449653) 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, 27482 + ... + 32064.

It is an arithmetic number, because the mean of its divisors is an integer number (17969280).

Almost surely, 2^136449659 is an apocalyptic number.

136449659 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

136449659 is a deficient number, since it is larger than the sum of its proper divisors (7304581).

136449659 is a wasteful number, since it uses less digits than its factorization.

136449659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6169.

The product of its digits is 699840, while the sum is 47.

The square root of 136449659 is about 11681.1668509614. The cubic root of 136449659 is about 514.8224593033.

The spelling of 136449659 in words is "one hundred thirty-six million, four hundred forty-nine thousand, six hundred fifty-nine".