147998393 has 2 divisors, whose sum is σ = 147998394. Its totient is φ = 147998392.

The previous prime is 147998359. The next prime is 147998407. The reversal of 147998393 is 393899741.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135303424 + 12694969 = 11632^2 + 3563^2 .

It is a cyclic number.

It is not a de Polignac number, because 147998393 - 2⁶ = 147998329 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (147998093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73999196 + 73999197.

It is an arithmetic number, because the mean of its divisors is an integer number (73999197).

Almost surely, 2^147998393 is an apocalyptic number.

It is an amenable number.

147998393 is a deficient number, since it is larger than the sum of its proper divisors (1).

147998393 is an equidigital number, since it uses as much as digits as its factorization.

147998393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 53.

The square root of 147998393 is about 12165.4590131240. The cubic root of 147998393 is about 528.9553327708.

The spelling of 147998393 in words is "one hundred forty-seven million, nine hundred ninety-eight thousand, three hundred ninety-three".