136489619 has 8 divisors (see below), whose sum is σ = 158185728. Its totient is φ = 115342920.

The previous prime is 136489589. The next prime is 136489657. The reversal of 136489619 is 916984631.

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

It is a de Polignac number, because none of the positive numbers 2^k-136489619 is a prime.

It is a super-2 number, since 2×136489619² = 37258832189530322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136489699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136817 + ... + 137810.

It is an arithmetic number, because the mean of its divisors is an integer number (19773216).

Almost surely, 2^136489619 is an apocalyptic number.

136489619 is a deficient number, since it is larger than the sum of its proper divisors (21696109).

136489619 is an equidigital number, since it uses as much as digits as its factorization.

136489619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274705.

The product of its digits is 279936, while the sum is 47.

The square root of 136489619 is about 11682.8771713136. The cubic root of 136489619 is about 514.8727105527.

The spelling of 136489619 in words is "one hundred thirty-six million, four hundred eighty-nine thousand, six hundred nineteen".