1005343253 has 2 divisors, whose sum is σ = 1005343254. Its totient is φ = 1005343252.

The previous prime is 1005343249. The next prime is 1005343267. The reversal of 1005343253 is 3523435001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 765186244 + 240157009 = 27662^2 + 15497^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005343253 - 2² = 1005343249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1005343753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502671626 + 502671627.

It is an arithmetic number, because the mean of its divisors is an integer number (502671627).

Almost surely, 2^1005343253 is an apocalyptic number.

It is an amenable number.

1005343253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005343253 is an equidigital number, since it uses as much as digits as its factorization.

1005343253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 1005343253 is about 31707.1482949823. The cubic root of 1005343253 is about 1001.7779214553. Note that the first 3 decimals are identical.

Adding to 1005343253 its reverse (3523435001), we get a palindrome (4528778254).

The spelling of 1005343253 in words is "one billion, five million, three hundred forty-three thousand, two hundred fifty-three".