148422217 has 2 divisors, whose sum is σ = 148422218. Its totient is φ = 148422216.

The previous prime is 148422199. The next prime is 148422259. The reversal of 148422217 is 712224841.

148422217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87909376 + 60512841 = 9376^2 + 7779^2 .

It is a cyclic number.

It is not a de Polignac number, because 148422217 - 2¹⁹ = 147897929 is a prime.

It is not a weakly prime, because it can be changed into another prime (148423217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74211108 + 74211109.

It is an arithmetic number, because the mean of its divisors is an integer number (74211109).

Almost surely, 2^148422217 is an apocalyptic number.

It is an amenable number.

148422217 is a deficient number, since it is larger than the sum of its proper divisors (1).

148422217 is an equidigital number, since it uses as much as digits as its factorization.

148422217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7168, while the sum is 31.

The square root of 148422217 is about 12182.8657137802. The cubic root of 148422217 is about 529.4597758736.

The spelling of 148422217 in words is "one hundred forty-eight million, four hundred twenty-two thousand, two hundred seventeen".