1641089701 has 2 divisors, whose sum is σ = 1641089702. Its totient is φ = 1641089700.

The previous prime is 1641089633. The next prime is 1641089719. The reversal of 1641089701 is 1079801461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1628122500 + 12967201 = 40350^2 + 3601^2 .

It is a cyclic number.

It is not a de Polignac number, because 1641089701 - 2⁷ = 1641089573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1641089761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820544850 + 820544851.

It is an arithmetic number, because the mean of its divisors is an integer number (820544851).

Almost surely, 2^1641089701 is an apocalyptic number.

It is an amenable number.

1641089701 is a deficient number, since it is larger than the sum of its proper divisors (1).

1641089701 is an equidigital number, since it uses as much as digits as its factorization.

1641089701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 1641089701 is about 40510.3653525860. The cubic root of 1641089701 is about 1179.5348403568.

The spelling of 1641089701 in words is "one billion, six hundred forty-one million, eighty-nine thousand, seven hundred one".