136290299 has 4 divisors (see below), whose sum is σ = 136464264. Its totient is φ = 136116336.

The previous prime is 136290281. The next prime is 136290311. The reversal of 136290299 is 992092631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136290299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136290199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85802 + ... + 87375.

It is an arithmetic number, because the mean of its divisors is an integer number (34116066).

Almost surely, 2^136290299 is an apocalyptic number.

136290299 is a deficient number, since it is larger than the sum of its proper divisors (173965).

136290299 is an equidigital number, since it uses as much as digits as its factorization.

136290299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173964.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 136290299 is about 11674.3436218059. The cubic root of 136290299 is about 514.6219602876.

The spelling of 136290299 in words is "one hundred thirty-six million, two hundred ninety thousand, two hundred ninety-nine".