1316413521 has 12 divisors (see below), whose sum is σ = 1929867472. Its totient is φ = 864509976.

The previous prime is 1316413519. The next prime is 1316413531. The reversal of 1316413521 is 1253146131.

It is a happy number.

1316413521 is a `hidden beast` number, since 13 + 1 + 641 + 3 + 5 + 2 + 1 = 666.

It is not a de Polignac number, because 1316413521 - 2¹ = 1316413519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1316413531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1090951 + ... + 1092156.

Almost surely, 2^1316413521 is an apocalyptic number.

It is an amenable number.

1316413521 is a deficient number, since it is larger than the sum of its proper divisors (613453951).

1316413521 is a wasteful number, since it uses less digits than its factorization.

1316413521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183180 (or 2183177 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1316413521 is about 36282.4133844484. The cubic root of 1316413521 is about 1095.9669172465.

Adding to 1316413521 its reverse (1253146131), we get a palindrome (2569559652).

The spelling of 1316413521 in words is "one billion, three hundred sixteen million, four hundred thirteen thousand, five hundred twenty-one".