148979393 has 2 divisors, whose sum is σ = 148979394. Its totient is φ = 148979392.

The previous prime is 148979377. The next prime is 148979401. The reversal of 148979393 is 393979841.

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., 94322944 + 54656449 = 9712^2 + 7393^2 .

It is a cyclic number.

It is not a de Polignac number, because 148979393 - 2⁴ = 148979377 is a prime.

It is not a weakly prime, because it can be changed into another prime (148979333) 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, 74489696 + 74489697.

It is an arithmetic number, because the mean of its divisors is an integer number (74489697).

Almost surely, 2^148979393 is an apocalyptic number.

It is an amenable number.

148979393 is a deficient number, since it is larger than the sum of its proper divisors (1).

148979393 is an equidigital number, since it uses as much as digits as its factorization.

148979393 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 148979393 is about 12205.7114909373. The cubic root of 148979393 is about 530.1214780286.

The spelling of 148979393 in words is "one hundred forty-eight million, nine hundred seventy-nine thousand, three hundred ninety-three".