1053440249 has 2 divisors, whose sum is σ = 1053440250. Its totient is φ = 1053440248.

The previous prime is 1053440203. The next prime is 1053440251. The reversal of 1053440249 is 9420443501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1050084025 + 3356224 = 32405^2 + 1832^2 .

It is a cyclic number.

It is not a de Polignac number, because 1053440249 - 2¹⁶ = 1053374713 is a prime.

It is a super-2 number, since 2×1053440249² = 2219472716426364002, which contains 22 as substring.

Together with 1053440251, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1053440279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526720124 + 526720125.

It is an arithmetic number, because the mean of its divisors is an integer number (526720125).

Almost surely, 2^1053440249 is an apocalyptic number.

It is an amenable number.

1053440249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1053440249 is an equidigital number, since it uses as much as digits as its factorization.

1053440249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1053440249 is about 32456.7442760361. The cubic root of 1053440249 is about 1017.5051963827.

The spelling of 1053440249 in words is "one billion, fifty-three million, four hundred forty thousand, two hundred forty-nine".