148419217 has 2 divisors, whose sum is σ = 148419218. Its totient is φ = 148419216.

The previous prime is 148419191. The next prime is 148419223. The reversal of 148419217 is 712914841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125417601 + 23001616 = 11199^2 + 4796^2 .

It is an emirp because it is prime and its reverse (712914841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 148419217 - 2²³ = 140030609 is a prime.

It is not a weakly prime, because it can be changed into another prime (148419287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74209608 + 74209609.

It is an arithmetic number, because the mean of its divisors is an integer number (74209609).

Almost surely, 2^148419217 is an apocalyptic number.

It is an amenable number.

148419217 is a deficient number, since it is larger than the sum of its proper divisors (1).

148419217 is an equidigital number, since it uses as much as digits as its factorization.

148419217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 37.

The square root of 148419217 is about 12182.7425894172. The cubic root of 148419217 is about 529.4562085954.

The spelling of 148419217 in words is "one hundred forty-eight million, four hundred nineteen thousand, two hundred seventeen".