1602841649 has 2 divisors, whose sum is σ = 1602841650. Its totient is φ = 1602841648.

The previous prime is 1602841637. The next prime is 1602841657. The reversal of 1602841649 is 9461482061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1595443249 + 7398400 = 39943^2 + 2720^2 .

It is a cyclic number.

It is not a de Polignac number, because 1602841649 - 2⁴ = 1602841633 is a prime.

It is not a weakly prime, because it can be changed into another prime (1602861649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801420824 + 801420825.

It is an arithmetic number, because the mean of its divisors is an integer number (801420825).

Almost surely, 2^1602841649 is an apocalyptic number.

It is an amenable number.

1602841649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1602841649 is an equidigital number, since it uses as much as digits as its factorization.

1602841649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 1602841649 is about 40035.5048550658. The cubic root of 1602841649 is about 1170.2991051100.

The spelling of 1602841649 in words is "one billion, six hundred two million, eight hundred forty-one thousand, six hundred forty-nine".