1144663253 has 2 divisors, whose sum is σ = 1144663254. Its totient is φ = 1144663252.

The previous prime is 1144663249. The next prime is 1144663259. The reversal of 1144663253 is 3523664411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1048270129 + 96393124 = 32377^2 + 9818^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144663253 - 2² = 1144663249 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144663259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572331626 + 572331627.

It is an arithmetic number, because the mean of its divisors is an integer number (572331627).

Almost surely, 2^1144663253 is an apocalyptic number.

It is an amenable number.

1144663253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144663253 is an equidigital number, since it uses as much as digits as its factorization.

1144663253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 35.

The square root of 1144663253 is about 33832.8723728861. The cubic root of 1144663253 is about 1046.0663863704.

The spelling of 1144663253 in words is "one billion, one hundred forty-four million, six hundred sixty-three thousand, two hundred fifty-three".