1257350012 has 6 divisors (see below), whose sum is σ = 2200362528. Its totient is φ = 628675004.

The previous prime is 1257350011. The next prime is 1257350027. The reversal of 1257350012 is 2100537521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1257350011) 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 as a sum of consecutive naturals, namely, 157168748 + ... + 157168755.

It is an arithmetic number, because the mean of its divisors is an integer number (366727088).

Almost surely, 2^1257350012 is an apocalyptic number.

It is an amenable number.

1257350012 is a deficient number, since it is larger than the sum of its proper divisors (943012516).

1257350012 is a wasteful number, since it uses less digits than its factorization.

1257350012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314337507 (or 314337505 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 1257350012 is about 35459.1315742504. The cubic root of 1257350012 is about 1079.3245696731.

Adding to 1257350012 its reverse (2100537521), we get a palindrome (3357887533).

The spelling of 1257350012 in words is "one billion, two hundred fifty-seven million, three hundred fifty thousand, twelve".