1315540133 has 2 divisors, whose sum is σ = 1315540134. Its totient is φ = 1315540132.

The previous prime is 1315540117. The next prime is 1315540139. The reversal of 1315540133 is 3310455131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1041869284 + 273670849 = 32278^2 + 16543^2 .

It is a cyclic number.

It is not a de Polignac number, because 1315540133 - 2⁴ = 1315540117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1315540139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657770066 + 657770067.

It is an arithmetic number, because the mean of its divisors is an integer number (657770067).

Almost surely, 2^1315540133 is an apocalyptic number.

It is an amenable number.

1315540133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315540133 is an equidigital number, since it uses as much as digits as its factorization.

1315540133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 1315540133 is about 36270.3754185148. The cubic root of 1315540133 is about 1095.7244868081.

Adding to 1315540133 its reverse (3310455131), we get a palindrome (4625995264).

The spelling of 1315540133 in words is "one billion, three hundred fifteen million, five hundred forty thousand, one hundred thirty-three".