133358399 has 4 divisors (see below), whose sum is σ = 135046560. Its totient is φ = 131670240.

The previous prime is 133358389. The next prime is 133358429. The reversal of 133358399 is 993853331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 993853331 = 853 ⋅1165127.

It is a cyclic number.

It is not a de Polignac number, because 133358399 - 2⁸ = 133358143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133358369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843962 + ... + 844119.

It is an arithmetic number, because the mean of its divisors is an integer number (33761640).

Almost surely, 2^133358399 is an apocalyptic number.

133358399 is a deficient number, since it is larger than the sum of its proper divisors (1688161).

133358399 is an equidigital number, since it uses as much as digits as its factorization.

133358399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688160.

The product of its digits is 262440, while the sum is 44.

The square root of 133358399 is about 11548.0907079915. The cubic root of 133358399 is about 510.9049663511.

The spelling of 133358399 in words is "one hundred thirty-three million, three hundred fifty-eight thousand, three hundred ninety-nine".