133369867 has 4 divisors (see below), whose sum is σ = 136974496. Its totient is φ = 129765240.

The previous prime is 133369861. The next prime is 133369871. The reversal of 133369867 is 768963331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133369867 - 2¹⁹ = 132845579 is a prime.

It is a super-3 number, since 3×133369867³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133369861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1802259 + ... + 1802332.

It is an arithmetic number, because the mean of its divisors is an integer number (34243624).

Almost surely, 2^133369867 is an apocalyptic number.

133369867 is a deficient number, since it is larger than the sum of its proper divisors (3604629).

133369867 is an equidigital number, since it uses as much as digits as its factorization.

133369867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3604628.

The product of its digits is 489888, while the sum is 46.

The square root of 133369867 is about 11548.5872296138. The cubic root of 133369867 is about 510.9196108236.

The spelling of 133369867 in words is "one hundred thirty-three million, three hundred sixty-nine thousand, eight hundred sixty-seven".