133297368 has 16 divisors (see below), whose sum is σ = 333243480. Its totient is φ = 44432448.

The previous prime is 133297363. The next prime is 133297387. The reversal of 133297368 is 863792331.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133297363) 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 3 ways as a sum of consecutive naturals, for example, 2777005 + ... + 2777052.

Almost surely, 2^133297368 is an apocalyptic number.

It is an amenable number.

133297368 is an abundant number, since it is smaller than the sum of its proper divisors (199946112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133297368 is a wasteful number, since it uses less digits than its factorization.

133297368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5554066 (or 5554062 counting only the distinct ones).

The product of its digits is 163296, while the sum is 42.

The square root of 133297368 is about 11545.4479341427. The cubic root of 133297368 is about 510.8270165080.

The spelling of 133297368 in words is "one hundred thirty-three million, two hundred ninety-seven thousand, three hundred sixty-eight".