248929841 has 4 divisors (see below), whose sum is σ = 249037812. Its totient is φ = 248821872.

The previous prime is 248929799. The next prime is 248929859. The reversal of 248929841 is 148929842.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 148929842 = 2 ⋅74464921.

It can be written as a sum of positive squares in 2 ways, for example, as 127599616 + 121330225 = 11296^2 + 11015^2 .

It is a cyclic number.

It is not a de Polignac number, because 248929841 - 2⁶ = 248929777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (248929871) 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, 50450 + ... + 55163.

It is an arithmetic number, because the mean of its divisors is an integer number (62259453).

Almost surely, 2^248929841 is an apocalyptic number.

It is an amenable number.

248929841 is a deficient number, since it is larger than the sum of its proper divisors (107971).

248929841 is a wasteful number, since it uses less digits than its factorization.

248929841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107970.

The product of its digits is 331776, while the sum is 47.

The square root of 248929841 is about 15777.5106084579. The cubic root of 248929841 is about 629.0603620659.

Subtracting from 248929841 its reverse (148929842), we obtain a palindrome (99999999).

The spelling of 248929841 in words is "two hundred forty-eight million, nine hundred twenty-nine thousand, eight hundred forty-one".