148796309 has 2 divisors, whose sum is σ = 148796310. Its totient is φ = 148796308.

The previous prime is 148796287. The next prime is 148796327. The reversal of 148796309 is 903697841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118875409 + 29920900 = 10903^2 + 5470^2 .

It is an emirp because it is prime and its reverse (903697841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 148796309 - 2¹² = 148792213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148796369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74398154 + 74398155.

It is an arithmetic number, because the mean of its divisors is an integer number (74398155).

Almost surely, 2^148796309 is an apocalyptic number.

It is an amenable number.

148796309 is a deficient number, since it is larger than the sum of its proper divisors (1).

148796309 is an equidigital number, since it uses as much as digits as its factorization.

148796309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 148796309 is about 12198.2092538208. The cubic root of 148796309 is about 529.9042297585.

The spelling of 148796309 in words is "one hundred forty-eight million, seven hundred ninety-six thousand, three hundred nine".