133409372 has 6 divisors (see below), whose sum is σ = 233466408. Its totient is φ = 66704684.

The previous prime is 133409371. The next prime is 133409389. The reversal of 133409372 is 273904331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133409371) 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 as a sum of consecutive naturals, namely, 16676168 + ... + 16676175.

It is an arithmetic number, because the mean of its divisors is an integer number (38911068).

Almost surely, 2^133409372 is an apocalyptic number.

It is an amenable number.

133409372 is a deficient number, since it is larger than the sum of its proper divisors (100057036).

133409372 is a wasteful number, since it uses less digits than its factorization.

133409372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33352347 (or 33352345 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 133409372 is about 11550.2974853464. The cubic root of 133409372 is about 510.9700517194.

The spelling of 133409372 in words is "one hundred thirty-three million, four hundred nine thousand, three hundred seventy-two".