249111493 has 2 divisors, whose sum is σ = 249111494. Its totient is φ = 249111492.

The previous prime is 249111463. The next prime is 249111503. The reversal of 249111493 is 394111942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236452129 + 12659364 = 15377^2 + 3558^2 .

It is a cyclic number.

It is not a de Polignac number, because 249111493 - 2¹⁷ = 248980421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249111463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124555746 + 124555747.

It is an arithmetic number, because the mean of its divisors is an integer number (124555747).

Almost surely, 2^249111493 is an apocalyptic number.

It is an amenable number.

249111493 is a deficient number, since it is larger than the sum of its proper divisors (1).

249111493 is an equidigital number, since it uses as much as digits as its factorization.

249111493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 34.

The square root of 249111493 is about 15783.2662335779. The cubic root of 249111493 is about 629.2133399601.

The spelling of 249111493 in words is "two hundred forty-nine million, one hundred eleven thousand, four hundred ninety-three".