1431041257 has 2 divisors, whose sum is σ = 1431041258. Its totient is φ = 1431041256.

The previous prime is 1431041237. The next prime is 1431041299. The reversal of 1431041257 is 7521401341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 749883456 + 681157801 = 27384^2 + 26099^2 .

It is a cyclic number.

It is not a de Polignac number, because 1431041257 - 2¹⁵ = 1431008489 is a prime.

It is a super-2 number, since 2×1431041257² = 4095758158472280098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1431041237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715520628 + 715520629.

It is an arithmetic number, because the mean of its divisors is an integer number (715520629).

Almost surely, 2^1431041257 is an apocalyptic number.

It is an amenable number.

1431041257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431041257 is an equidigital number, since it uses as much as digits as its factorization.

1431041257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1431041257 is about 37829.1059503129. The cubic root of 1431041257 is about 1126.8965558674.

Adding to 1431041257 its reverse (7521401341), we get a palindrome (8952442598).

The spelling of 1431041257 in words is "one billion, four hundred thirty-one million, forty-one thousand, two hundred fifty-seven".