136406288 has 20 divisors (see below), whose sum is σ = 264930960. Its totient is φ = 68037024.

The previous prime is 136406243. The next prime is 136406297. The reversal of 136406288 is 882604631.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

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, 3470 + ... + 16877.

It is an arithmetic number, because the mean of its divisors is an integer number (13246548).

Almost surely, 2^136406288 is an apocalyptic number.

It is an amenable number.

136406288 is a deficient number, since it is larger than the sum of its proper divisors (128524672).

136406288 is a wasteful number, since it uses less digits than its factorization.

136406288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20774 (or 20768 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 136406288 is about 11679.3102536066. The cubic root of 136406288 is about 514.7679074849.

The spelling of 136406288 in words is "one hundred thirty-six million, four hundred six thousand, two hundred eighty-eight".