249286845 has 16 divisors (see below), whose sum is σ = 399110400. Its totient is φ = 132869184.

The previous prime is 249286837. The next prime is 249286853. The reversal of 249286845 is 548682942.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (249286837) and next prime (249286853).

It is not a de Polignac number, because 249286845 - 2³ = 249286837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 249286794 and 249286803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24972 + ... + 33498.

It is an arithmetic number, because the mean of its divisors is an integer number (24944400).

Almost surely, 2^249286845 is an apocalyptic number.

It is an amenable number.

249286845 is a deficient number, since it is larger than the sum of its proper divisors (149823555).

249286845 is a wasteful number, since it uses less digits than its factorization.

249286845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10484.

The product of its digits is 1105920, while the sum is 48.

The square root of 249286845 is about 15788.8202535845. The cubic root of 249286845 is about 629.3609417937.

The spelling of 249286845 in words is "two hundred forty-nine million, two hundred eighty-six thousand, eight hundred forty-five".