1520316712 has 8 divisors (see below), whose sum is σ = 2850593850. Its totient is φ = 760158352.

The previous prime is 1520316709. The next prime is 1520316719. The reversal of 1520316712 is 2176130251.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1492585956 + 27730756 = 38634^2 + 5266^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1520316712² = 4622725809572981888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1520316719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95019787 + ... + 95019802.

Almost surely, 2^1520316712 is an apocalyptic number.

It is an amenable number.

1520316712 is a deficient number, since it is larger than the sum of its proper divisors (1330277138).

1520316712 is a wasteful number, since it uses less digits than its factorization.

1520316712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190039595 (or 190039591 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1520316712 is about 38991.2389133764. The cubic root of 1520316712 is about 1149.8592674665.

Adding to 1520316712 its reverse (2176130251), we get a palindrome (3696446963).

The spelling of 1520316712 in words is "one billion, five hundred twenty million, three hundred sixteen thousand, seven hundred twelve".