1256971060 has 12 divisors (see below), whose sum is σ = 2639639268. Its totient is φ = 502788416.

The previous prime is 1256971057. The next prime is 1256971061. The reversal of 1256971060 is 601796521.

It can be written as a sum of positive squares in 2 ways, for example, as 853925284 + 403045776 = 29222^2 + 20076^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256971061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31424257 + ... + 31424296.

It is an arithmetic number, because the mean of its divisors is an integer number (219969939).

Almost surely, 2^1256971060 is an apocalyptic number.

1256971060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1256971060 is an abundant number, since it is smaller than the sum of its proper divisors (1382668208).

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

1256971060 is a wasteful number, since it uses less digits than its factorization.

1256971060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62848562 (or 62848560 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 1256971060 is about 35453.7876678924. The cubic root of 1256971060 is about 1079.2161264399.

The spelling of 1256971060 in words is "one billion, two hundred fifty-six million, nine hundred seventy-one thousand, sixty".