1316000731 has 4 divisors (see below), whose sum is σ = 1322614000. Its totient is φ = 1309387464.

The previous prime is 1316000713. The next prime is 1316000737. The reversal of 1316000731 is 1370006131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1316000731 - 2⁷ = 1316000603 is a prime.

It is a super-2 number, since 2×1316000731² = 3463715847985068722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1316000737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3306336 + ... + 3306733.

It is an arithmetic number, because the mean of its divisors is an integer number (330653500).

Almost surely, 2^1316000731 is an apocalyptic number.

1316000731 is a deficient number, since it is larger than the sum of its proper divisors (6613269).

1316000731 is an equidigital number, since it uses as much as digits as its factorization.

1316000731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6613268.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 1316000731 is about 36276.7243697664. The cubic root of 1316000731 is about 1095.8523505413.

Adding to 1316000731 its reverse (1370006131), we get a palindrome (2686006862).

The spelling of 1316000731 in words is "one billion, three hundred sixteen million, seven hundred thirty-one", and thus it is an aban number.