249072853 has 2 divisors, whose sum is σ = 249072854. Its totient is φ = 249072852.

The previous prime is 249072847. The next prime is 249072913. The reversal of 249072853 is 358270942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223741764 + 25331089 = 14958^2 + 5033^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249072853 is a prime.

It is a super-2 number, since 2×249072853² = 124074572203119218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249072823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124536426 + 124536427.

It is an arithmetic number, because the mean of its divisors is an integer number (124536427).

Almost surely, 2^249072853 is an apocalyptic number.

It is an amenable number.

249072853 is a deficient number, since it is larger than the sum of its proper divisors (1).

249072853 is an equidigital number, since it uses as much as digits as its factorization.

249072853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 249072853 is about 15782.0421048735. The cubic root of 249072853 is about 629.1808055845.

The spelling of 249072853 in words is "two hundred forty-nine million, seventy-two thousand, eight hundred fifty-three".