249685073 has 12 divisors (see below), whose sum is σ = 274863120. Its totient is φ = 226642680.

The previous prime is 249685063. The next prime is 249685087. The reversal of 249685073 is 370586942.

249685073 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 249685073 - 2⁴ = 249685057 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 (249685013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113498 + ... + 115676.

It is an arithmetic number, because the mean of its divisors is an integer number (22905260).

Almost surely, 2^249685073 is an apocalyptic number.

It is an amenable number.

249685073 is a deficient number, since it is larger than the sum of its proper divisors (25178047).

249685073 is a wasteful number, since it uses less digits than its factorization.

249685073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148 (or 3137 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 249685073 is about 15801.4262963822. The cubic root of 249685073 is about 629.6958916918.

The spelling of 249685073 in words is "two hundred forty-nine million, six hundred eighty-five thousand, seventy-three".