330145031 has 2 divisors, whose sum is σ = 330145032. Its totient is φ = 330145030.

The previous prime is 330144989. The next prime is 330145051. The reversal of 330145031 is 130541033.

It is a happy number.

It is an a-pointer prime, because the next prime (330145051) can be obtained adding 330145031 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-330145031 is a prime.

It is a super-2 number, since 2×330145031² = 217991482987981922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 330144994 and 330145012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (330145051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165072515 + 165072516.

It is an arithmetic number, because the mean of its divisors is an integer number (165072516).

Almost surely, 2^330145031 is an apocalyptic number.

330145031 is a deficient number, since it is larger than the sum of its proper divisors (1).

330145031 is an equidigital number, since it uses as much as digits as its factorization.

330145031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 330145031 is about 18169.8935329847. The cubic root of 330145031 is about 691.1435430825.

Adding to 330145031 its reverse (130541033), we get a palindrome (460686064).

The spelling of 330145031 in words is "three hundred thirty million, one hundred forty-five thousand, thirty-one".