133530329 has 4 divisors (see below), whose sum is σ = 134778384. Its totient is φ = 132282276.

The previous prime is 133530323. The next prime is 133530367. The reversal of 133530329 is 923035331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133530329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133530323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623867 + ... + 624080.

It is an arithmetic number, because the mean of its divisors is an integer number (33694596).

Almost surely, 2^133530329 is an apocalyptic number.

It is an amenable number.

133530329 is a deficient number, since it is larger than the sum of its proper divisors (1248055).

133530329 is a wasteful number, since it uses less digits than its factorization.

133530329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248054.

The product of its (nonzero) digits is 7290, while the sum is 29.

The square root of 133530329 is about 11555.5323979469. The cubic root of 133530329 is about 511.1244305165.

The spelling of 133530329 in words is "one hundred thirty-three million, five hundred thirty thousand, three hundred twenty-nine".