136866346 has 4 divisors (see below), whose sum is σ = 205299522. Its totient is φ = 68433172.

The previous prime is 136866263. The next prime is 136866347. The reversal of 136866346 is 643668631.

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

It can be written as a sum of positive squares in only one way, i.e., 97239321 + 39627025 = 9861^2 + 6295^2 .

It is not an unprimeable number, because it can be changed into a prime (136866347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34216585 + ... + 34216588.

Almost surely, 2^136866346 is an apocalyptic number.

136866346 is a deficient number, since it is larger than the sum of its proper divisors (68433176).

136866346 is an equidigital number, since it uses as much as digits as its factorization.

136866346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68433175.

The product of its digits is 373248, while the sum is 43.

The square root of 136866346 is about 11698.9891016275. The cubic root of 136866346 is about 515.3459779695.

The spelling of 136866346 in words is "one hundred thirty-six million, eight hundred sixty-six thousand, three hundred forty-six".