1602240709 has 2 divisors, whose sum is σ = 1602240710. Its totient is φ = 1602240708.

The previous prime is 1602240707. The next prime is 1602240713. The reversal of 1602240709 is 9070422061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1589616900 + 12623809 = 39870^2 + 3553^2 .

It is a cyclic number.

It is not a de Polignac number, because 1602240709 - 2¹ = 1602240707 is a prime.

Together with 1602240707, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1602240707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801120354 + 801120355.

It is an arithmetic number, because the mean of its divisors is an integer number (801120355).

Almost surely, 2^1602240709 is an apocalyptic number.

It is an amenable number.

1602240709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1602240709 is an equidigital number, since it uses as much as digits as its factorization.

1602240709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1602240709 is about 40027.9990631558. Note that the first 3 decimals coincide. The cubic root of 1602240709 is about 1170.1528300127.

The spelling of 1602240709 in words is "one billion, six hundred two million, two hundred forty thousand, seven hundred nine".