136660222 has 4 divisors (see below), whose sum is σ = 204990336. Its totient is φ = 68330110.

The previous prime is 136660207. The next prime is 136660231. The reversal of 136660222 is 222066631.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 34165054 + ... + 34165057.

It is an arithmetic number, because the mean of its divisors is an integer number (51247584).

Almost surely, 2^136660222 is an apocalyptic number.

136660222 is a deficient number, since it is larger than the sum of its proper divisors (68330114).

136660222 is an equidigital number, since it uses as much as digits as its factorization.

136660222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68330113.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 136660222 is about 11690.1763032043. The cubic root of 136660222 is about 515.0871401860.

The spelling of 136660222 in words is "one hundred thirty-six million, six hundred sixty thousand, two hundred twenty-two".