148279393 has 2 divisors, whose sum is σ = 148279394. Its totient is φ = 148279392.

The previous prime is 148279381. The next prime is 148279399. The reversal of 148279393 is 393972841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148279329 + 64 = 12177^2 + 8^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148279393 is a prime.

It is not a weakly prime, because it can be changed into another prime (148279399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74139696 + 74139697.

It is an arithmetic number, because the mean of its divisors is an integer number (74139697).

Almost surely, 2^148279393 is an apocalyptic number.

It is an amenable number.

148279393 is a deficient number, since it is larger than the sum of its proper divisors (1).

148279393 is an equidigital number, since it uses as much as digits as its factorization.

148279393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 148279393 is about 12177.0026279048. The cubic root of 148279393 is about 529.2898915322.

The spelling of 148279393 in words is "one hundred forty-eight million, two hundred seventy-nine thousand, three hundred ninety-three".