1375516517 has 2 divisors, whose sum is σ = 1375516518. Its totient is φ = 1375516516.

The previous prime is 1375516507. The next prime is 1375516537. The reversal of 1375516517 is 7156155731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 806503201 + 569013316 = 28399^2 + 23854^2 .

It is an emirp because it is prime and its reverse (7156155731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1375516517 - 2¹² = 1375512421 is a prime.

It is a super-2 number, since 2×1375516517² = 3784091377079622578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1375516507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687758258 + 687758259.

It is an arithmetic number, because the mean of its divisors is an integer number (687758259).

Almost surely, 2^1375516517 is an apocalyptic number.

It is an amenable number.

1375516517 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375516517 is an equidigital number, since it uses as much as digits as its factorization.

1375516517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110250, while the sum is 41.

The square root of 1375516517 is about 37087.9564953369. The cubic root of 1375516517 is about 1112.1292670684.

The spelling of 1375516517 in words is "one billion, three hundred seventy-five million, five hundred sixteen thousand, five hundred seventeen".