1315541473 has 2 divisors, whose sum is σ = 1315541474. Its totient is φ = 1315541472.

The previous prime is 1315541411. The next prime is 1315541489. The reversal of 1315541473 is 3741455131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1167383889 + 148157584 = 34167^2 + 12172^2 .

It is a cyclic number.

It is not a de Polignac number, because 1315541473 - 2¹³ = 1315533281 is a prime.

It is not a weakly prime, because it can be changed into another prime (1315541173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657770736 + 657770737.

It is an arithmetic number, because the mean of its divisors is an integer number (657770737).

Almost surely, 2^1315541473 is an apocalyptic number.

It is an amenable number.

1315541473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315541473 is an equidigital number, since it uses as much as digits as its factorization.

1315541473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 34.

The square root of 1315541473 is about 36270.3938908857. The cubic root of 1315541473 is about 1095.7248588404.

The spelling of 1315541473 in words is "one billion, three hundred fifteen million, five hundred forty-one thousand, four hundred seventy-three".