1310971394 has 8 divisors (see below), whose sum is σ = 1969194240. Its totient is φ = 654573316.

The previous prime is 1310971349. The next prime is 1310971397. The reversal of 1310971394 is 4931790131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1310971397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454394 + ... + 457269.

It is an arithmetic number, because the mean of its divisors is an integer number (246149280).

Almost surely, 2^1310971394 is an apocalyptic number.

1310971394 is a deficient number, since it is larger than the sum of its proper divisors (658222846).

1310971394 is an equidigital number, since it uses as much as digits as its factorization.

1310971394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912384.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 1310971394 is about 36207.3389522069. The cubic root of 1310971394 is about 1094.4545684728.

The spelling of 1310971394 in words is "one billion, three hundred ten million, nine hundred seventy-one thousand, three hundred ninety-four".