136448688 has 20 divisors (see below), whose sum is σ = 352492568. Its totient is φ = 45482880.

The previous prime is 136448623. The next prime is 136448693. The reversal of 136448688 is 886844631.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 2842681 = 136448688 / (1 + 3 + 6 + 4 + 4 + 8 + 6 + 8 + 8).

It is a nude number because it is divisible by every one of its digits.

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, 1421293 + ... + 1421388.

Almost surely, 2^136448688 is an apocalyptic number.

It is an amenable number.

136448688 is an abundant number, since it is smaller than the sum of its proper divisors (216043880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136448688 is a wasteful number, since it uses less digits than its factorization.

136448688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842692 (or 2842686 counting only the distinct ones).

The product of its digits is 884736, while the sum is 48.

The square root of 136448688 is about 11681.1252882588. The cubic root of 136448688 is about 514.8212381110.

The spelling of 136448688 in words is "one hundred thirty-six million, four hundred forty-eight thousand, six hundred eighty-eight".