1316249673 has 8 divisors (see below), whose sum is σ = 1756513248. Its totient is φ = 876742944.

The previous prime is 1316249659. The next prime is 1316249689. The reversal of 1316249673 is 3769426131.

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

It is not a de Polignac number, because 1316249673 - 2⁴ = 1316249657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1316249603) 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 7 ways as a sum of consecutive naturals, for example, 185140 + ... + 192117.

It is an arithmetic number, because the mean of its divisors is an integer number (219564156).

Almost surely, 2^1316249673 is an apocalyptic number.

It is an amenable number.

1316249673 is a deficient number, since it is larger than the sum of its proper divisors (440263575).

1316249673 is a wasteful number, since it uses less digits than its factorization.

1316249673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378423.

The product of its digits is 163296, while the sum is 42.

The square root of 1316249673 is about 36280.1553607478. The cubic root of 1316249673 is about 1095.9214453550.

It can be divided in two parts, 13162 and 49673, that added together give a triangular number (62835 = T₃₅₄).

The spelling of 1316249673 in words is "one billion, three hundred sixteen million, two hundred forty-nine thousand, six hundred seventy-three".