7240009169 has 2 divisors, whose sum is σ = 7240009170. Its totient is φ = 7240009168.

The previous prime is 7240009157. The next prime is 7240009187. The reversal of 7240009169 is 9619000427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7239797569 + 211600 = 85087^2 + 460^2 .

It is an emirp because it is prime and its reverse (9619000427) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7240009169 is a prime.

It is a super-2 number, since 2×7240009169² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7240009129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3620004584 + 3620004585.

It is an arithmetic number, because the mean of its divisors is an integer number (3620004585).

Almost surely, 2^7240009169 is an apocalyptic number.

It is an amenable number.

7240009169 is a deficient number, since it is larger than the sum of its proper divisors (1).

7240009169 is an equidigital number, since it uses as much as digits as its factorization.

7240009169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 7240009169 is about 85088.2434241065. The cubic root of 7240009169 is about 1934.5488708320.

The spelling of 7240009169 in words is "seven billion, two hundred forty million, nine thousand, one hundred sixty-nine".