148643305 has 8 divisors (see below), whose sum is σ = 178666632. Its totient is φ = 118718208.

The previous prime is 148643293. The next prime is 148643311. The reversal of 148643305 is 503346841.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7817616 + 140825689 = 2796^2 + 11867^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 148643305 - 2¹⁷ = 148512233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21184 + ... + 27313.

It is an arithmetic number, because the mean of its divisors is an integer number (22333329).

Almost surely, 2^148643305 is an apocalyptic number.

It is an amenable number.

148643305 is a deficient number, since it is larger than the sum of its proper divisors (30023327).

148643305 is an equidigital number, since it uses as much as digits as its factorization.

148643305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49115.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 148643305 is about 12191.9360644649. The cubic root of 148643305 is about 529.7225378127.

The spelling of 148643305 in words is "one hundred forty-eight million, six hundred forty-three thousand, three hundred five".