329149547 has 4 divisors (see below), whose sum is σ = 330562440. Its totient is φ = 327736656.

The previous prime is 329149523. The next prime is 329149553. The reversal of 329149547 is 745941923.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 745941923 = 613 ⋅1216871.

It is a cyclic number.

It is not a de Polignac number, because 329149547 - 2¹⁴ = 329133163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 329149498 and 329149507.

It is not an unprimeable number, because it can be changed into a prime (329149147) 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, 706097 + ... + 706562.

It is an arithmetic number, because the mean of its divisors is an integer number (82640610).

Almost surely, 2^329149547 is an apocalyptic number.

329149547 is a deficient number, since it is larger than the sum of its proper divisors (1412893).

329149547 is a wasteful number, since it uses less digits than its factorization.

329149547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412892.

The product of its digits is 272160, while the sum is 44.

The square root of 329149547 is about 18142.4790753634. The cubic root of 329149547 is about 690.4481769407.

The spelling of 329149547 in words is "three hundred twenty-nine million, one hundred forty-nine thousand, five hundred forty-seven".