1257141463 has 2 divisors, whose sum is σ = 1257141464. Its totient is φ = 1257141462.

The previous prime is 1257141461. The next prime is 1257141493. The reversal of 1257141463 is 3641417521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1257141463 - 2¹ = 1257141461 is a prime.

Together with 1257141461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1257141461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628570731 + 628570732.

It is an arithmetic number, because the mean of its divisors is an integer number (628570732).

Almost surely, 2^1257141463 is an apocalyptic number.

1257141463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1257141463 is an equidigital number, since it uses as much as digits as its factorization.

1257141463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 1257141463 is about 35456.1907570455. The cubic root of 1257141463 is about 1079.2648927061.

Adding to 1257141463 its reverse (3641417521), we get a palindrome (4898558984).

The spelling of 1257141463 in words is "one billion, two hundred fifty-seven million, one hundred forty-one thousand, four hundred sixty-three".