136389518 has 8 divisors (see below), whose sum is σ = 204830640. Its totient is φ = 68112640.

The previous prime is 136389503. The next prime is 136389569. The reversal of 136389518 is 815983631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38963 + ... + 42318.

It is an arithmetic number, because the mean of its divisors is an integer number (25603830).

Almost surely, 2^136389518 is an apocalyptic number.

136389518 is a deficient number, since it is larger than the sum of its proper divisors (68441122).

136389518 is an equidigital number, since it uses as much as digits as its factorization.

136389518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82122.

The product of its digits is 155520, while the sum is 44.

The square root of 136389518 is about 11678.5922953068. The cubic root of 136389518 is about 514.7468111662.

The spelling of 136389518 in words is "one hundred thirty-six million, three hundred eighty-nine thousand, five hundred eighteen".