1040712217 has 2 divisors, whose sum is σ = 1040712218. Its totient is φ = 1040712216.

The previous prime is 1040712161. The next prime is 1040712227. The reversal of 1040712217 is 7122170401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1011939721 + 28772496 = 31811^2 + 5364^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040712217 - 2¹¹ = 1040710169 is a prime.

It is a super-2 number, since 2×1040712217² = 2166163837226110178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1040712191 and 1040712200.

It is not a weakly prime, because it can be changed into another prime (1040712227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520356108 + 520356109.

It is an arithmetic number, because the mean of its divisors is an integer number (520356109).

Almost surely, 2^1040712217 is an apocalyptic number.

It is an amenable number.

1040712217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040712217 is an equidigital number, since it uses as much as digits as its factorization.

1040712217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 1040712217 is about 32260.0715591271. The cubic root of 1040712217 is about 1013.3906296834.

Adding to 1040712217 its reverse (7122170401), we get a palindrome (8162882618).

The spelling of 1040712217 in words is "one billion, forty million, seven hundred twelve thousand, two hundred seventeen".