147306331 has 2 divisors, whose sum is σ = 147306332. Its totient is φ = 147306330.

The previous prime is 147306293. The next prime is 147306359. The reversal of 147306331 is 133603741.

It is a happy number.

It is an a-pointer prime, because the next prime (147306359) can be obtained adding 147306331 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 147306331 - 2¹³ = 147298139 is a prime.

It is a super-2 number, since 2×147306331² = 43398310305363122, which contains 22 as substring.

It is equal to p_8301349 and since 147306331 and 8301349 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 147306331.

It is not a weakly prime, because it can be changed into another prime (147306371) 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 as a sum of consecutive naturals, namely, 73653165 + 73653166.

It is an arithmetic number, because the mean of its divisors is an integer number (73653166).

Almost surely, 2^147306331 is an apocalyptic number.

147306331 is a deficient number, since it is larger than the sum of its proper divisors (1).

147306331 is an equidigital number, since it uses as much as digits as its factorization.

147306331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 147306331 is about 12136.9819559889. The cubic root of 147306331 is about 528.1295535991.

The spelling of 147306331 in words is "one hundred forty-seven million, three hundred six thousand, three hundred thirty-one".