1047122257 has 2 divisors, whose sum is σ = 1047122258. Its totient is φ = 1047122256.

The previous prime is 1047122207. The next prime is 1047122267. The reversal of 1047122257 is 7522217401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1031630161 + 15492096 = 32119^2 + 3936^2 .

It is a cyclic number.

It is not a de Polignac number, because 1047122257 - 2¹¹ = 1047120209 is a prime.

It is a super-2 number, since 2×1047122257² = 2192930042209548098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1047122207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523561128 + 523561129.

It is an arithmetic number, because the mean of its divisors is an integer number (523561129).

Almost surely, 2^1047122257 is an apocalyptic number.

It is an amenable number.

1047122257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1047122257 is an equidigital number, since it uses as much as digits as its factorization.

1047122257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 1047122257 is about 32359.2684867875. The cubic root of 1047122257 is about 1015.4669588146.

Adding to 1047122257 its reverse (7522217401), we get a palindrome (8569339658).

The spelling of 1047122257 in words is "one billion, forty-seven million, one hundred twenty-two thousand, two hundred fifty-seven".