1351971012 has 48 divisors (see below), whose sum is σ = 3613180032. Its totient is φ = 385428480.

The previous prime is 1351970989. The next prime is 1351971029. The reversal of 1351971012 is 2101791531.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21268 + ... + 56180.

It is an arithmetic number, because the mean of its divisors is an integer number (75274584).

Almost surely, 2^1351971012 is an apocalyptic number.

1351971012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1351971012 is an abundant number, since it is smaller than the sum of its proper divisors (2261209020).

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

1351971012 is a wasteful number, since it uses less digits than its factorization.

1351971012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35388 (or 35386 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 30.

The square root of 1351971012 is about 36769.1584347534. The cubic root of 1351971012 is about 1105.7470599118.

The spelling of 1351971012 in words is "one billion, three hundred fifty-one million, nine hundred seventy-one thousand, twelve".