148278841 has 4 divisors (see below), whose sum is σ = 150310132. Its totient is φ = 146247552.

The previous prime is 148278817. The next prime is 148278857. The reversal of 148278841 is 148872841.

148278841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28047616 + 120231225 = 5296^2 + 10965^2 .

It is a cyclic number.

It is not a de Polignac number, because 148278841 - 2²⁵ = 114724409 is a prime.

It is a super-2 number, since 2×148278841² = 43973229376606562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148278341) 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, 1015536 + ... + 1015681.

It is an arithmetic number, because the mean of its divisors is an integer number (37577533).

Almost surely, 2^148278841 is an apocalyptic number.

It is an amenable number.

148278841 is a deficient number, since it is larger than the sum of its proper divisors (2031291).

148278841 is an equidigital number, since it uses as much as digits as its factorization.

148278841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031290.

The product of its digits is 114688, while the sum is 43.

The square root of 148278841 is about 12176.9799622074. The cubic root of 148278841 is about 529.2892347352.

The spelling of 148278841 in words is "one hundred forty-eight million, two hundred seventy-eight thousand, eight hundred forty-one".