249828147 has 6 divisors (see below), whose sum is σ = 360862892. Its totient is φ = 166552092.

The previous prime is 249828143. The next prime is 249828157. The reversal of 249828147 is 741828942.

249828147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 249828147 - 2² = 249828143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249828143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13879333 + ... + 13879350.

Almost surely, 2^249828147 is an apocalyptic number.

249828147 is a deficient number, since it is larger than the sum of its proper divisors (111034745).

249828147 is a wasteful number, since it uses less digits than its factorization.

249828147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27758689 (or 27758686 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 249828147 is about 15805.9528975636. The cubic root of 249828147 is about 629.8161443846.

The spelling of 249828147 in words is "two hundred forty-nine million, eight hundred twenty-eight thousand, one hundred forty-seven".