133669149 has 16 divisors (see below), whose sum is σ = 184766400. Its totient is φ = 85855616.

The previous prime is 133669111. The next prime is 133669153. The reversal of 133669149 is 941966331.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133669149 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 133669149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133662149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47617 + ... + 50345.

It is an arithmetic number, because the mean of its divisors is an integer number (11547900).

Almost surely, 2^133669149 is an apocalyptic number.

It is an amenable number.

133669149 is a deficient number, since it is larger than the sum of its proper divisors (51097251).

133669149 is a wasteful number, since it uses less digits than its factorization.

133669149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3324.

The product of its digits is 104976, while the sum is 42.

The square root of 133669149 is about 11561.5374842622. The cubic root of 133669149 is about 511.3014932103.

The spelling of 133669149 in words is "one hundred thirty-three million, six hundred sixty-nine thousand, one hundred forty-nine".