1040453969 has 2 divisors, whose sum is σ = 1040453970. Its totient is φ = 1040453968.

The previous prime is 1040453959. The next prime is 1040453987. The reversal of 1040453969 is 9693540401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 891321025 + 149132944 = 29855^2 + 12212^2 .

It is an emirp because it is prime and its reverse (9693540401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040453969 is a prime.

It is a super-2 number, since 2×1040453969² = 2165088923215705922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1040453959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520226984 + 520226985.

It is an arithmetic number, because the mean of its divisors is an integer number (520226985).

Almost surely, 2^1040453969 is an apocalyptic number.

It is an amenable number.

1040453969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040453969 is an equidigital number, since it uses as much as digits as its factorization.

1040453969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 1040453969 is about 32256.0687158246. The cubic root of 1040453969 is about 1013.3067999915.

The spelling of 1040453969 in words is "one billion, forty million, four hundred fifty-three thousand, nine hundred sixty-nine".