249435166 has 4 divisors (see below), whose sum is σ = 374152752. Its totient is φ = 124717582.

The previous prime is 249435143. The next prime is 249435187. The reversal of 249435166 is 661534942.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62358790 + ... + 62358793.

It is an arithmetic number, because the mean of its divisors is an integer number (93538188).

Almost surely, 2^249435166 is an apocalyptic number.

249435166 is a deficient number, since it is larger than the sum of its proper divisors (124717586).

249435166 is a wasteful number, since it uses less digits than its factorization.

249435166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124717585.

The product of its digits is 155520, while the sum is 40.

The square root of 249435166 is about 15793.5165811798. The cubic root of 249435166 is about 629.4857363679.

The spelling of 249435166 in words is "two hundred forty-nine million, four hundred thirty-five thousand, one hundred sixty-six".