148553217 has 8 divisors (see below), whose sum is σ = 220078880. Its totient is φ = 99035460.

The previous prime is 148553203. The next prime is 148553221. The reversal of 148553217 is 712355841.

It is not a de Polignac number, because 148553217 - 2²⁶ = 81444353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148553227) 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 in 7 ways as a sum of consecutive naturals, for example, 2750959 + ... + 2751012.

It is an arithmetic number, because the mean of its divisors is an integer number (27509860).

Almost surely, 2^148553217 is an apocalyptic number.

It is an amenable number.

148553217 is a deficient number, since it is larger than the sum of its proper divisors (71525663).

148553217 is an equidigital number, since it uses as much as digits as its factorization.

148553217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5501980 (or 5501974 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 148553217 is about 12188.2409313239. The cubic root of 148553217 is about 529.6155001674.

The spelling of 148553217 in words is "one hundred forty-eight million, five hundred fifty-three thousand, two hundred seventeen".