136218351 has 16 divisors (see below), whose sum is σ = 190232064. Its totient is φ = 86538144.

The previous prime is 136218347. The next prime is 136218419. The reversal of 136218351 is 153812631.

It is not a de Polignac number, because 136218351 - 2² = 136218347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136218301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15550 + ... + 22676.

It is an arithmetic number, because the mean of its divisors is an integer number (11889504).

Almost surely, 2^136218351 is an apocalyptic number.

136218351 is a deficient number, since it is larger than the sum of its proper divisors (54013713).

136218351 is a wasteful number, since it uses less digits than its factorization.

136218351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7430.

The product of its digits is 4320, while the sum is 30.

The square root of 136218351 is about 11671.2617569824. The cubic root of 136218351 is about 514.5313875950.

The spelling of 136218351 in words is "one hundred thirty-six million, two hundred eighteen thousand, three hundred fifty-one".