1641031339 has 2 divisors, whose sum is σ = 1641031340. Its totient is φ = 1641031338.

The previous prime is 1641031321. The next prime is 1641031409. The reversal of 1641031339 is 9331301461.

It is a weak prime.

It is an emirp because it is prime and its reverse (9331301461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1641031339 - 2¹⁵ = 1640998571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1641031339.

It is not a weakly prime, because it can be changed into another prime (1641031319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820515669 + 820515670.

It is an arithmetic number, because the mean of its divisors is an integer number (820515670).

Almost surely, 2^1641031339 is an apocalyptic number.

1641031339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1641031339 is an equidigital number, since it uses as much as digits as its factorization.

1641031339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 1641031339 is about 40509.6450120215. The cubic root of 1641031339 is about 1179.5208576094.

The spelling of 1641031339 in words is "one billion, six hundred forty-one million, thirty-one thousand, three hundred thirty-nine".