249470099 has 6 divisors (see below), whose sum is σ = 254268756. Its totient is φ = 244760360.

The previous prime is 249470083. The next prime is 249470173. The reversal of 249470099 is 990074942.

It is not a de Polignac number, because 249470099 - 2⁴ = 249470083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249470009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41597 + ... + 47214.

It is an arithmetic number, because the mean of its divisors is an integer number (42378126).

Almost surely, 2^249470099 is an apocalyptic number.

249470099 is a deficient number, since it is larger than the sum of its proper divisors (4798657).

249470099 is an frugal number, since it uses more digits than its factorization.

249470099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88917 (or 88864 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 249470099 is about 15794.6224709551. The cubic root of 249470099 is about 629.5151211563.

The spelling of 249470099 in words is "two hundred forty-nine million, four hundred seventy thousand, ninety-nine".