136669608 has 48 divisors (see below), whose sum is σ = 378031680. Its totient is φ = 44586144.

The previous prime is 136669573. The next prime is 136669619. The reversal of 136669608 is 806966631.

It is a super-3 number, since 3×136669608³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 16810 + ... + 23577.

It is an arithmetic number, because the mean of its divisors is an integer number (7875660).

Almost surely, 2^136669608 is an apocalyptic number.

136669608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

136669608 is an abundant number, since it is smaller than the sum of its proper divisors (241362072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136669608 is a wasteful number, since it uses less digits than its factorization.

136669608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40446 (or 40439 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 136669608 is about 11690.5777444915. The cubic root of 136669608 is about 515.0989321987.

The spelling of 136669608 in words is "one hundred thirty-six million, six hundred sixty-nine thousand, six hundred eight".