1257010160 has 40 divisors (see below), whose sum is σ = 3340057056. Its totient is φ = 430974720.

The previous prime is 1257010123. The next prime is 1257010187. The reversal of 1257010160 is 610107521.

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 1121771 + ... + 1122890.

Almost surely, 2^1257010160 is an apocalyptic number.

1257010160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1257010160 is an abundant number, since it is smaller than the sum of its proper divisors (2083046896).

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

1257010160 is a wasteful number, since it uses less digits than its factorization.

1257010160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244681 (or 2244675 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 1257010160 is about 35454.3390856465. The cubic root of 1257010160 is about 1079.2273165445.

Adding to 1257010160 its reverse (610107521), we get a palindrome (1867117681).

The spelling of 1257010160 in words is "one billion, two hundred fifty-seven million, ten thousand, one hundred sixty".