133118406 has 12 divisors (see below), whose sum is σ = 288423252. Its totient is φ = 44372796.

The previous prime is 133118383. The next prime is 133118413. The reversal of 133118406 is 604811331.

It is a self number, because there is not a number n which added to its sum of digits gives 133118406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3697716 + ... + 3697751.

It is an arithmetic number, because the mean of its divisors is an integer number (24035271).

Almost surely, 2^133118406 is an apocalyptic number.

133118406 is an abundant number, since it is smaller than the sum of its proper divisors (155304846).

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

133118406 is a wasteful number, since it uses less digits than its factorization.

133118406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7395475 (or 7395472 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 133118406 is about 11537.6950037692. The cubic root of 133118406 is about 510.5983058975.

Adding to 133118406 its reverse (604811331), we get a palindrome (737929737).

The spelling of 133118406 in words is "one hundred thirty-three million, one hundred eighteen thousand, four hundred six".