1257190068 has 12 divisors (see below), whose sum is σ = 2933443520. Its totient is φ = 419063352.

The previous prime is 1257190037. The next prime is 1257190079. The reversal of 1257190068 is 8600917521.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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, 52382908 + ... + 52382931.

Almost surely, 2^1257190068 is an apocalyptic number.

It is an amenable number.

1257190068 is an abundant number, since it is smaller than the sum of its proper divisors (1676253452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1257190068 is a wasteful number, since it uses less digits than its factorization.

1257190068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104765846 (or 104765844 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 1257190068 is about 35456.8761737410. The cubic root of 1257190068 is about 1079.2788017730.

The spelling of 1257190068 in words is "one billion, two hundred fifty-seven million, one hundred ninety thousand, sixty-eight".