148442647 has 2 divisors, whose sum is σ = 148442648. Its totient is φ = 148442646.

The previous prime is 148442641. The next prime is 148442681. The reversal of 148442647 is 746244841.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 148442647 - 2³ = 148442639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148442641) 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 as a sum of consecutive naturals, namely, 74221323 + 74221324.

It is an arithmetic number, because the mean of its divisors is an integer number (74221324).

Almost surely, 2^148442647 is an apocalyptic number.

148442647 is a deficient number, since it is larger than the sum of its proper divisors (1).

148442647 is an equidigital number, since it uses as much as digits as its factorization.

148442647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172032, while the sum is 40.

The square root of 148442647 is about 12183.7041576033. The cubic root of 148442647 is about 529.4840677601.

The spelling of 148442647 in words is "one hundred forty-eight million, four hundred forty-two thousand, six hundred forty-seven".