136660346 has 4 divisors (see below), whose sum is σ = 204990522. Its totient is φ = 68330172.

The previous prime is 136660327. The next prime is 136660367. The reversal of 136660346 is 643066631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 643066631 = 191 ⋅3366841.

It can be written as a sum of positive squares in only one way, i.e., 92371321 + 44289025 = 9611^2 + 6655^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34165085 + ... + 34165088.

Almost surely, 2^136660346 is an apocalyptic number.

136660346 is a deficient number, since it is larger than the sum of its proper divisors (68330176).

136660346 is an equidigital number, since it uses as much as digits as its factorization.

136660346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68330175.

The product of its (nonzero) digits is 46656, while the sum is 35.

The square root of 136660346 is about 11690.1816068015. The cubic root of 136660346 is about 515.0872959758.

The spelling of 136660346 in words is "one hundred thirty-six million, six hundred sixty thousand, three hundred forty-six".