1609916101 has 2 divisors, whose sum is σ = 1609916102. Its totient is φ = 1609916100.

The previous prime is 1609916093. The next prime is 1609916107. The reversal of 1609916101 is 1016199061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1388680225 + 221235876 = 37265^2 + 14874^2 .

It is a cyclic number.

It is not a de Polignac number, because 1609916101 - 2³ = 1609916093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1609916107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804958050 + 804958051.

It is an arithmetic number, because the mean of its divisors is an integer number (804958051).

Almost surely, 2^1609916101 is an apocalyptic number.

It is an amenable number.

1609916101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1609916101 is an equidigital number, since it uses as much as digits as its factorization.

1609916101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 34.

The square root of 1609916101 is about 40123.7598063791. The cubic root of 1609916101 is about 1172.0183587401.

The spelling of 1609916101 in words is "one billion, six hundred nine million, nine hundred sixteen thousand, one hundred one".