1319986971 has 12 divisors (see below), whose sum is σ = 1909746072. Its totient is φ = 878561376.

The previous prime is 1319986957. The next prime is 1319987029. The reversal of 1319986971 is 1796899131.

It is a happy number.

It is not a de Polignac number, because 1319986971 - 2⁶ = 1319986907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1319986901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113301 + ... + 124406.

It is an arithmetic number, because the mean of its divisors is an integer number (159145506).

Almost surely, 2^1319986971 is an apocalyptic number.

1319986971 is a deficient number, since it is larger than the sum of its proper divisors (589759101).

1319986971 is a wasteful number, since it uses less digits than its factorization.

1319986971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238330 (or 238327 counting only the distinct ones).

The product of its digits is 734832, while the sum is 54.

The square root of 1319986971 is about 36331.6249430162. The cubic root of 1319986971 is about 1096.9577013057.

The spelling of 1319986971 in words is "one billion, three hundred nineteen million, nine hundred eighty-six thousand, nine hundred seventy-one".