330147481 has 4 divisors (see below), whose sum is σ = 330376464. Its totient is φ = 329918500.

The previous prime is 330147473. The next prime is 330147509. The reversal of 330147481 is 184741033.

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 not a de Polignac number, because 330147481 - 2³ = 330147473 is a prime.

It is a super-2 number, since 2×330147481² = 217994718421290722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (330147581) 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, 112315 + ... + 115216.

It is an arithmetic number, because the mean of its divisors is an integer number (82594116).

Almost surely, 2^330147481 is an apocalyptic number.

It is an amenable number.

330147481 is a deficient number, since it is larger than the sum of its proper divisors (228983).

330147481 is a wasteful number, since it uses less digits than its factorization.

330147481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228982.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 330147481 is about 18169.9609520769. The cubic root of 330147481 is about 691.1452527326.

The spelling of 330147481 in words is "three hundred thirty million, one hundred forty-seven thousand, four hundred eighty-one".