148395281 has 2 divisors, whose sum is σ = 148395282. Its totient is φ = 148395280.

The previous prime is 148395253. The next prime is 148395319. The reversal of 148395281 is 182593841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146410000 + 1985281 = 12100^2 + 1409^2 .

It is an emirp because it is prime and its reverse (182593841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 148395281 - 2¹⁴ = 148378897 is a prime.

It is a super-2 number, since 2×148395281² = 44042318846137922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (148395251) 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 as a sum of consecutive naturals, namely, 74197640 + 74197641.

It is an arithmetic number, because the mean of its divisors is an integer number (74197641).

Almost surely, 2^148395281 is an apocalyptic number.

It is an amenable number.

148395281 is a deficient number, since it is larger than the sum of its proper divisors (1).

148395281 is an equidigital number, since it uses as much as digits as its factorization.

148395281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 41.

The square root of 148395281 is about 12181.7601765919. The cubic root of 148395281 is about 529.4277447496.

The spelling of 148395281 in words is "one hundred forty-eight million, three hundred ninety-five thousand, two hundred eighty-one".