133397369 has 8 divisors (see below), whose sum is σ = 153023040. Its totient is φ = 113913936.

The previous prime is 133397357. The next prime is 133397389. The reversal of 133397369 is 963793331.

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 133397369 - 2²⁰ = 132348793 is a prime.

It is a super-2 number, since 2×133397369² = 35589716112244322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133397389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33539 + ... + 37304.

It is an arithmetic number, because the mean of its divisors is an integer number (19127880).

Almost surely, 2^133397369 is an apocalyptic number.

It is an amenable number.

133397369 is a deficient number, since it is larger than the sum of its proper divisors (19625671).

133397369 is an equidigital number, since it uses as much as digits as its factorization.

133397369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71119.

The product of its digits is 275562, while the sum is 44.

The square root of 133397369 is about 11549.7778766520. Note that the first 3 decimals coincide. The cubic root of 133397369 is about 510.9547270652.

The spelling of 133397369 in words is "one hundred thirty-three million, three hundred ninety-seven thousand, three hundred sixty-nine".