249761353 has 2 divisors, whose sum is σ = 249761354. Its totient is φ = 249761352.

The previous prime is 249761293. The next prime is 249761363. The reversal of 249761353 is 353167942.

It is a happy number.

249761353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242985744 + 6775609 = 15588^2 + 2603^2 .

It is a cyclic number.

It is not a de Polignac number, because 249761353 - 2²¹ = 247664201 is a prime.

It is not a weakly prime, because it can be changed into another prime (249761363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124880676 + 124880677.

It is an arithmetic number, because the mean of its divisors is an integer number (124880677).

Almost surely, 2^249761353 is an apocalyptic number.

It is an amenable number.

249761353 is a deficient number, since it is larger than the sum of its proper divisors (1).

249761353 is an equidigital number, since it uses as much as digits as its factorization.

249761353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 40.

The square root of 249761353 is about 15803.8398182214. The cubic root of 249761353 is about 629.7600102117.

The spelling of 249761353 in words is "two hundred forty-nine million, seven hundred sixty-one thousand, three hundred fifty-three".