136606663 has 4 divisors (see below), whose sum is σ = 136754640. Its totient is φ = 136458688.

The previous prime is 136606651. The next prime is 136606667. The reversal of 136606663 is 366606631.

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 136606663 - 2¹³ = 136598471 is a prime.

It is a super-2 number, since 2×136606663² = 37322760751991138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136606667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72595 + ... + 74452.

It is an arithmetic number, because the mean of its divisors is an integer number (34188660).

Almost surely, 2^136606663 is an apocalyptic number.

136606663 is a deficient number, since it is larger than the sum of its proper divisors (147977).

136606663 is an equidigital number, since it uses as much as digits as its factorization.

136606663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147976.

The product of its (nonzero) digits is 69984, while the sum is 37.

The square root of 136606663 is about 11687.8853091567. The cubic root of 136606663 is about 515.0198415078.

The spelling of 136606663 in words is "one hundred thirty-six million, six hundred six thousand, six hundred sixty-three".