136668274 has 8 divisors (see below), whose sum is σ = 211615488. Its totient is φ = 66129780.

The previous prime is 136668221. The next prime is 136668283. The reversal of 136668274 is 472866631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 136668274.

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 3 ways as a sum of consecutive naturals, for example, 1102102 + ... + 1102225.

It is an arithmetic number, because the mean of its divisors is an integer number (26451936).

Almost surely, 2^136668274 is an apocalyptic number.

136668274 is a deficient number, since it is larger than the sum of its proper divisors (74947214).

136668274 is a wasteful number, since it uses less digits than its factorization.

136668274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204360.

The product of its digits is 290304, while the sum is 43.

The square root of 136668274 is about 11690.5206898581. The cubic root of 136668274 is about 515.0972562733.

The spelling of 136668274 in words is "one hundred thirty-six million, six hundred sixty-eight thousand, two hundred seventy-four".