148105217 has 8 divisors (see below), whose sum is σ = 159905256. Its totient is φ = 136363392.

The previous prime is 148105189. The next prime is 148105229. The reversal of 148105217 is 712501841.

It can be written as a sum of positive squares in 4 ways, for example, as 215296 + 147889921 = 464^2 + 12161^2 .

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 148105217 - 2¹⁰ = 148104193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 148105217.

It is not an unprimeable number, because it can be changed into a prime (148108217) 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 in 7 ways as a sum of consecutive naturals, for example, 9188 + ... + 19509.

It is an arithmetic number, because the mean of its divisors is an integer number (19988157).

Almost surely, 2^148105217 is an apocalyptic number.

It is an amenable number.

148105217 is a deficient number, since it is larger than the sum of its proper divisors (11800039).

148105217 is a wasteful number, since it uses less digits than its factorization.

148105217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29107.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 148105217 is about 12169.8486843510. The cubic root of 148105217 is about 529.0825673392.

The spelling of 148105217 in words is "one hundred forty-eight million, one hundred five thousand, two hundred seventeen".