136488489 has 8 divisors (see below), whose sum is σ = 182240640. Its totient is φ = 90864336.

The previous prime is 136488479. The next prime is 136488491. The reversal of 136488489 is 984884631.

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

It is not a de Polignac number, because 136488489 - 2⁷ = 136488361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136488479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29482 + ... + 33795.

It is an arithmetic number, because the mean of its divisors is an integer number (22780080).

Almost surely, 2^136488489 is an apocalyptic number.

It is an amenable number.

136488489 is a deficient number, since it is larger than the sum of its proper divisors (45752151).

136488489 is an equidigital number, since it uses as much as digits as its factorization.

136488489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63999.

The product of its digits is 1327104, while the sum is 51.

The square root of 136488489 is about 11682.8288098388. The cubic root of 136488489 is about 514.8712896687.

The spelling of 136488489 in words is "one hundred thirty-six million, four hundred eighty-eight thousand, four hundred eighty-nine".