1312541089 has 2 divisors, whose sum is σ = 1312541090. Its totient is φ = 1312541088.

The previous prime is 1312541029. The next prime is 1312541107. The reversal of 1312541089 is 9801452131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1291683600 + 20857489 = 35940^2 + 4567^2 .

It is an emirp because it is prime and its reverse (9801452131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1312541089 - 2¹⁵ = 1312508321 is a prime.

It is a super-2 number, since 2×1312541089² = 3445528220626611842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1312541029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656270544 + 656270545.

It is an arithmetic number, because the mean of its divisors is an integer number (656270545).

Almost surely, 2^1312541089 is an apocalyptic number.

It is an amenable number.

1312541089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312541089 is an equidigital number, since it uses as much as digits as its factorization.

1312541089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 1312541089 is about 36229.0089431108. The cubic root of 1312541089 is about 1094.8912102535.

The spelling of 1312541089 in words is "one billion, three hundred twelve million, five hundred forty-one thousand, eighty-nine".