249079241 has 2 divisors, whose sum is σ = 249079242. Its totient is φ = 249079240.

The previous prime is 249079217. The next prime is 249079247. The reversal of 249079241 is 142970942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248976841 + 102400 = 15779^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 249079241 - 2¹⁴ = 249062857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 249079195 and 249079204.

It is not a weakly prime, because it can be changed into another prime (249079247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124539620 + 124539621.

It is an arithmetic number, because the mean of its divisors is an integer number (124539621).

Almost surely, 2^249079241 is an apocalyptic number.

It is an amenable number.

249079241 is a deficient number, since it is larger than the sum of its proper divisors (1).

249079241 is an equidigital number, since it uses as much as digits as its factorization.

249079241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 249079241 is about 15782.2444854970. The cubic root of 249079241 is about 629.1861844293.

The spelling of 249079241 in words is "two hundred forty-nine million, seventy-nine thousand, two hundred forty-one".