1361375089 has 2 divisors, whose sum is σ = 1361375090. Its totient is φ = 1361375088.

The previous prime is 1361375063. The next prime is 1361375107. The reversal of 1361375089 is 9805731631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 801342864 + 560032225 = 28308^2 + 23665^2 .

It is a cyclic number.

It is not a de Polignac number, because 1361375089 - 2¹⁵ = 1361342321 is a prime.

It is not a weakly prime, because it can be changed into another prime (1361375039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680687544 + 680687545.

It is an arithmetic number, because the mean of its divisors is an integer number (680687545).

Almost surely, 2^1361375089 is an apocalyptic number.

It is an amenable number.

1361375089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361375089 is an equidigital number, since it uses as much as digits as its factorization.

1361375089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 1361375089 is about 36896.8167868178. The cubic root of 1361375089 is about 1108.3049335679.

The spelling of 1361375089 in words is "one billion, three hundred sixty-one million, three hundred seventy-five thousand, eighty-nine".