7415317561 has 2 divisors, whose sum is σ = 7415317562. Its totient is φ = 7415317560.

The previous prime is 7415317537. The next prime is 7415317571. The reversal of 7415317561 is 1657135147.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6505390336 + 909927225 = 80656^2 + 30165^2 .

It is an emirp because it is prime and its reverse (1657135147) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7415317561 - 2¹⁷ = 7415186489 is a prime.

It is not a weakly prime, because it can be changed into another prime (7415317571) 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, 3707658780 + 3707658781.

It is an arithmetic number, because the mean of its divisors is an integer number (3707658781).

Almost surely, 2^7415317561 is an apocalyptic number.

It is an amenable number.

7415317561 is a deficient number, since it is larger than the sum of its proper divisors (1).

7415317561 is an equidigital number, since it uses as much as digits as its factorization.

7415317561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 40.

The square root of 7415317561 is about 86112.2381604380. The cubic root of 7415317561 is about 1950.0387948451.

The spelling of 7415317561 in words is "seven billion, four hundred fifteen million, three hundred seventeen thousand, five hundred sixty-one".