148240643 has 2 divisors, whose sum is σ = 148240644. Its totient is φ = 148240642.

The previous prime is 148240637. The next prime is 148240657. The reversal of 148240643 is 346042841.

148240643 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 is an emirp because it is prime and its reverse (346042841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 148240643 - 2⁶ = 148240579 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (148240613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74120321 + 74120322.

It is an arithmetic number, because the mean of its divisors is an integer number (74120322).

Almost surely, 2^148240643 is an apocalyptic number.

148240643 is a deficient number, since it is larger than the sum of its proper divisors (1).

148240643 is an equidigital number, since it uses as much as digits as its factorization.

148240643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 148240643 is about 12175.4114098867. The cubic root of 148240643 is about 529.2437808988.

The spelling of 148240643 in words is "one hundred forty-eight million, two hundred forty thousand, six hundred forty-three".