133344909 has 12 divisors (see below), whose sum is σ = 192752352. Its totient is φ = 88830600.

The previous prime is 133344901. The next prime is 133344917. The reversal of 133344909 is 909443331.

133344909 is a `hidden beast` number, since 133 + 34 + 490 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (133344901) and next prime (133344917).

It is not a de Polignac number, because 133344909 - 2³ = 133344901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133344901) 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 11 ways as a sum of consecutive naturals, for example, 9424 + ... + 18854.

It is an arithmetic number, because the mean of its divisors is an integer number (16062696).

Almost surely, 2^133344909 is an apocalyptic number.

It is an amenable number.

133344909 is a deficient number, since it is larger than the sum of its proper divisors (59407443).

133344909 is a wasteful number, since it uses less digits than its factorization.

133344909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11008 (or 11005 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 133344909 is about 11547.5066139838. The cubic root of 133344909 is about 510.8877387388.

The spelling of 133344909 in words is "one hundred thirty-three million, three hundred forty-four thousand, nine hundred nine".