1257141464 has 16 divisors (see below), whose sum is σ = 2411958120. Its totient is φ = 613952640.

The previous prime is 1257141463. The next prime is 1257141493. The reversal of 1257141464 is 4641417521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1257141461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1826897 + ... + 1827584.

Almost surely, 2^1257141464 is an apocalyptic number.

It is an amenable number.

1257141464 is a deficient number, since it is larger than the sum of its proper divisors (1154816656).

1257141464 is a wasteful number, since it uses less digits than its factorization.

1257141464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3654530 (or 3654526 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 1257141464 is about 35456.1907711474. The cubic root of 1257141464 is about 1079.2648929923.

Adding to 1257141464 its reverse (4641417521), we get a palindrome (5898558985).

The spelling of 1257141464 in words is "one billion, two hundred fifty-seven million, one hundred forty-one thousand, four hundred sixty-four".