1361124517 has 2 divisors, whose sum is σ = 1361124518. Its totient is φ = 1361124516.

The previous prime is 1361124511. The next prime is 1361124547. The reversal of 1361124517 is 7154211631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1239110401 + 122014116 = 35201^2 + 11046^2 .

It is a cyclic number.

It is not a de Polignac number, because 1361124517 - 2³ = 1361124509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361124511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680562258 + 680562259.

It is an arithmetic number, because the mean of its divisors is an integer number (680562259).

Almost surely, 2^1361124517 is an apocalyptic number.

It is an amenable number.

1361124517 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361124517 is an equidigital number, since it uses as much as digits as its factorization.

1361124517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 31.

The square root of 1361124517 is about 36893.4210530821. The cubic root of 1361124517 is about 1108.2369319260.

The spelling of 1361124517 in words is "one billion, three hundred sixty-one million, one hundred twenty-four thousand, five hundred seventeen".