1257010317 has 12 divisors (see below), whose sum is σ = 1838665920. Its totient is φ = 827398728.

The previous prime is 1257010297. The next prime is 1257010319. The reversal of 1257010317 is 7130107521.

It is a happy number.

1257010317 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1257010317 - 2¹⁹ = 1256486029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1257010319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 883263 + ... + 884684.

It is an arithmetic number, because the mean of its divisors is an integer number (153222160).

Almost surely, 2^1257010317 is an apocalyptic number.

It is an amenable number.

1257010317 is a deficient number, since it is larger than the sum of its proper divisors (581655603).

1257010317 is a wasteful number, since it uses less digits than its factorization.

1257010317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768032 (or 1768029 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 27.

The square root of 1257010317 is about 35454.3412997619. The cubic root of 1257010317 is about 1079.2273614762.

Adding to 1257010317 its reverse (7130107521), we get a palindrome (8387117838).

The spelling of 1257010317 in words is "one billion, two hundred fifty-seven million, ten thousand, three hundred seventeen".