136404236 has 6 divisors (see below), whose sum is σ = 238707420. Its totient is φ = 68202116.

The previous prime is 136404217. The next prime is 136404259. The reversal of 136404236 is 632404631.

It is a super-2 number, since 2×136404236² = 37212231197487392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 136404199 and 136404208.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17050526 + ... + 17050533.

It is an arithmetic number, because the mean of its divisors is an integer number (39784570).

Almost surely, 2^136404236 is an apocalyptic number.

It is an amenable number.

136404236 is a deficient number, since it is larger than the sum of its proper divisors (102303184).

136404236 is a wasteful number, since it uses less digits than its factorization.

136404236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34101063 (or 34101061 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 136404236 is about 11679.2224056227. Note that the first 3 decimals coincide. The cubic root of 136404236 is about 514.7653262035.

Adding to 136404236 its reverse (632404631), we get a palindrome (768808867).

The spelling of 136404236 in words is "one hundred thirty-six million, four hundred four thousand, two hundred thirty-six".