133409393 has 8 divisors (see below), whose sum is σ = 151233600. Its totient is φ = 116665488.
The previous prime is 133409389. The next prime is 133409417. The reversal of 133409393 is 393904331.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 133409393 - 22 = 133409389 is a prime.
It is a super-2 number, since 2×1334093932 = 35596132281256898, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (133409333) 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 7 ways as a sum of consecutive naturals, for example, 269813 + ... + 270306.
It is an arithmetic number, because the mean of its divisors is an integer number (18904200).
Almost surely, 2133409393 is an apocalyptic number.
133409393 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
It is an amenable number.
133409393 is a deficient number, since it is larger than the sum of its proper divisors (17824207).
133409393 is a wasteful number, since it uses less digits than its factorization.
133409393 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 540151.
The product of its (nonzero) digits is 26244, while the sum is 35.
The square root of 133409393 is about 11550.2983944139. The cubic root of 133409393 is about 510.9700785301.
The spelling of 133409393 in words is "one hundred thirty-three million, four hundred nine thousand, three hundred ninety-three".
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