1040211257 has 2 divisors, whose sum is σ = 1040211258. Its totient is φ = 1040211256.

The previous prime is 1040211199. The next prime is 1040211311. The reversal of 1040211257 is 7521120401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 652751401 + 387459856 = 25549^2 + 19684^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040211257 - 2⁸ = 1040211001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1040211157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520105628 + 520105629.

It is an arithmetic number, because the mean of its divisors is an integer number (520105629).

Almost surely, 2^1040211257 is an apocalyptic number.

It is an amenable number.

1040211257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040211257 is an equidigital number, since it uses as much as digits as its factorization.

1040211257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 1040211257 is about 32252.3062276173. The cubic root of 1040211257 is about 1013.2280007834.

Adding to 1040211257 its reverse (7521120401), we get a palindrome (8561331658).

The spelling of 1040211257 in words is "one billion, forty million, two hundred eleven thousand, two hundred fifty-seven".