136400222 has 24 divisors (see below), whose sum is σ = 240332976. Its totient is φ = 57885408.

The previous prime is 136400203. The next prime is 136400237. The reversal of 136400222 is 222004631.

It is a junction number, because it is equal to n+sod(n) for n = 136400194 and 136400203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3338 + ... + 16850.

It is an arithmetic number, because the mean of its divisors is an integer number (10013874).

Almost surely, 2^136400222 is an apocalyptic number.

136400222 is a deficient number, since it is larger than the sum of its proper divisors (103932754).

136400222 is a wasteful number, since it uses less digits than its factorization.

136400222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13632 (or 13625 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 136400222 is about 11679.0505607262. The cubic root of 136400222 is about 514.7602767800.

Adding to 136400222 its reverse (222004631), we get a palindrome (358404853).

The spelling of 136400222 in words is "one hundred thirty-six million, four hundred thousand, two hundred twenty-two".