137404206 has 12 divisors (see below), whose sum is σ = 297709152. Its totient is φ = 45801396.

The previous prime is 137404133. The next prime is 137404213. The reversal of 137404206 is 602404731.

It is a self number, because there is not a number n which added to its sum of digits gives 137404206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3816766 + ... + 3816801.

It is an arithmetic number, because the mean of its divisors is an integer number (24809096).

Almost surely, 2^137404206 is an apocalyptic number.

137404206 is an abundant number, since it is smaller than the sum of its proper divisors (160304946).

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

137404206 is a wasteful number, since it uses less digits than its factorization.

137404206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7633575 (or 7633572 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 137404206 is about 11721.9540179955. The cubic root of 137404206 is about 516.0201677713.

Adding to 137404206 its reverse (602404731), we get a palindrome (739808937).

The spelling of 137404206 in words is "one hundred thirty-seven million, four hundred four thousand, two hundred six".