148218841 has 4 divisors (see below), whose sum is σ = 148419072. Its totient is φ = 148018612.

The previous prime is 148218799. The next prime is 148218853. The reversal of 148218841 is 148812841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 148812841 = 97 ⋅1534153.

It is a cyclic number.

It is not a de Polignac number, because 148218841 - 2¹⁹ = 147694553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 148218841.

It is not an unprimeable number, because it can be changed into a prime (148218541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99001 + ... + 100486.

It is an arithmetic number, because the mean of its divisors is an integer number (37104768).

Almost surely, 2^148218841 is an apocalyptic number.

It is an amenable number.

148218841 is a deficient number, since it is larger than the sum of its proper divisors (200231).

148218841 is an equidigital number, since it uses as much as digits as its factorization.

148218841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200230.

The product of its digits is 16384, while the sum is 37.

The square root of 148218841 is about 12174.5160478764. The cubic root of 148218841 is about 529.2178340366.

The spelling of 148218841 in words is "one hundred forty-eight million, two hundred eighteen thousand, eight hundred forty-one".