1345515361 has 2 divisors, whose sum is σ = 1345515362. Its totient is φ = 1345515360.

The previous prime is 1345515359. The next prime is 1345515403. The reversal of 1345515361 is 1635155431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1345495761 + 19600 = 36681^2 + 140^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345515361 - 2¹ = 1345515359 is a prime.

Together with 1345515359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1345515461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672757680 + 672757681.

It is an arithmetic number, because the mean of its divisors is an integer number (672757681).

Almost surely, 2^1345515361 is an apocalyptic number.

It is an amenable number.

1345515361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345515361 is an equidigital number, since it uses as much as digits as its factorization.

1345515361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27000, while the sum is 34.

The square root of 1345515361 is about 36681.2671673158. The cubic root of 1345515361 is about 1103.9842733114.

The spelling of 1345515361 in words is "one billion, three hundred forty-five million, five hundred fifteen thousand, three hundred sixty-one".