1257103160 has 32 divisors (see below), whose sum is σ = 2829492000. Its totient is φ = 502661760.

The previous prime is 1257103153. The next prime is 1257103171. The reversal of 1257103160 is 613017521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213050 + ... + 218870.

It is an arithmetic number, because the mean of its divisors is an integer number (88421625).

Almost surely, 2^1257103160 is an apocalyptic number.

1257103160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1257103160 is an abundant number, since it is smaller than the sum of its proper divisors (1572388840).

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

1257103160 is a wasteful number, since it uses less digits than its factorization.

1257103160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11231 (or 11227 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1257103160 is about 35455.6506074843. The cubic root of 1257103160 is about 1079.2539314621.

The spelling of 1257103160 in words is "one billion, two hundred fifty-seven million, one hundred three thousand, one hundred sixty".