161000783 has 2 divisors, whose sum is σ = 161000784. Its totient is φ = 161000782.

The previous prime is 161000771. The next prime is 161000789. The reversal of 161000783 is 387000161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161000783 - 2²⁰ = 159952207 is a prime.

It is a super-2 number, since 2×161000783² = 51842504253226178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161000789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80500391 + 80500392.

It is an arithmetic number, because the mean of its divisors is an integer number (80500392).

Almost surely, 2^161000783 is an apocalyptic number.

161000783 is a deficient number, since it is larger than the sum of its proper divisors (1).

161000783 is an equidigital number, since it uses as much as digits as its factorization.

161000783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 161000783 is about 12688.6083949344. The cubic root of 161000783 is about 544.0130644480.

The spelling of 161000783 in words is "one hundred sixty-one million, seven hundred eighty-three", and thus it is an aban number.