249070993 has 2 divisors, whose sum is σ = 249070994. Its totient is φ = 249070992.

The previous prime is 249070973. The next prime is 249070999. The reversal of 249070993 is 399070942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125260864 + 123810129 = 11192^2 + 11127^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249070993 is a prime.

It is not a weakly prime, because it can be changed into another prime (249070999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124535496 + 124535497.

It is an arithmetic number, because the mean of its divisors is an integer number (124535497).

Almost surely, 2^249070993 is an apocalyptic number.

It is an amenable number.

249070993 is a deficient number, since it is larger than the sum of its proper divisors (1).

249070993 is an equidigital number, since it uses as much as digits as its factorization.

249070993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 249070993 is about 15781.9831770282. The cubic root of 249070993 is about 629.1792394039.

The spelling of 249070993 in words is "two hundred forty-nine million, seventy thousand, nine hundred ninety-three".