1316520072 has 48 divisors (see below), whose sum is σ = 4074944640. Its totient is φ = 376148448.

The previous prime is 1316520061. The next prime is 1316520077. The reversal of 1316520072 is 2700256131.

It is a happy number.

1316520072 is a `hidden beast` number, since 1 + 3 + 1 + 652 + 0 + 0 + 7 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (1316520077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1305568 + ... + 1306575.

It is an arithmetic number, because the mean of its divisors is an integer number (84894680).

Almost surely, 2^1316520072 is an apocalyptic number.

1316520072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1316520072 is an abundant number, since it is smaller than the sum of its proper divisors (2758424568).

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

1316520072 is a wasteful number, since it uses less digits than its factorization.

1316520072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2612162 (or 2612155 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 1316520072 is about 36283.8817107542. The cubic root of 1316520072 is about 1095.9964857720.

The spelling of 1316520072 in words is "one billion, three hundred sixteen million, five hundred twenty thousand, seventy-two".