148353409 has 2 divisors, whose sum is σ = 148353410. Its totient is φ = 148353408.

The previous prime is 148353391. The next prime is 148353433. The reversal of 148353409 is 904353841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142277184 + 6076225 = 11928^2 + 2465^2 .

It is a cyclic number.

It is not a de Polignac number, because 148353409 - 2²³ = 139964801 is a prime.

It is not a weakly prime, because it can be changed into another prime (148353109) 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, 74176704 + 74176705.

It is an arithmetic number, because the mean of its divisors is an integer number (74176705).

Almost surely, 2^148353409 is an apocalyptic number.

It is an amenable number.

148353409 is a deficient number, since it is larger than the sum of its proper divisors (1).

148353409 is an equidigital number, since it uses as much as digits as its factorization.

148353409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 148353409 is about 12180.0414202908. The cubic root of 148353409 is about 529.3779446846.

The spelling of 148353409 in words is "one hundred forty-eight million, three hundred fifty-three thousand, four hundred nine".