148389643 has 2 divisors, whose sum is σ = 148389644. Its totient is φ = 148389642.

The previous prime is 148389623. The next prime is 148389667. The reversal of 148389643 is 346983841.

148389643 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 a cyclic number.

It is not a de Polignac number, because 148389643 - 2¹³ = 148381451 is a prime.

It is a super-2 number, since 2×148389643² = 44038972299334898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 148389593 and 148389602.

It is not a weakly prime, because it can be changed into another prime (148389623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74194821 + 74194822.

It is an arithmetic number, because the mean of its divisors is an integer number (74194822).

Almost surely, 2^148389643 is an apocalyptic number.

148389643 is a deficient number, since it is larger than the sum of its proper divisors (1).

148389643 is an equidigital number, since it uses as much as digits as its factorization.

148389643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 46.

The square root of 148389643 is about 12181.5287628442. The cubic root of 148389643 is about 529.4210397937.

The spelling of 148389643 in words is "one hundred forty-eight million, three hundred eighty-nine thousand, six hundred forty-three".