136239418 has 8 divisors (see below), whose sum is σ = 233553312. Its totient is φ = 58388316.

The previous prime is 136239409. The next prime is 136239421. The reversal of 136239418 is 814932631.

136239418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×136239418² = 37122358033957448, which contains 22 as substring.

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, 4865680 + ... + 4865707.

It is an arithmetic number, because the mean of its divisors is an integer number (29194164).

Almost surely, 2^136239418 is an apocalyptic number.

136239418 is a deficient number, since it is larger than the sum of its proper divisors (97313894).

136239418 is an equidigital number, since it uses as much as digits as its factorization.

136239418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9731396.

The product of its digits is 31104, while the sum is 37.

The square root of 136239418 is about 11672.1642380494. The cubic root of 136239418 is about 514.5579113683.

The spelling of 136239418 in words is "one hundred thirty-six million, two hundred thirty-nine thousand, four hundred eighteen".