161208703 has 2 divisors, whose sum is σ = 161208704. Its totient is φ = 161208702.

The previous prime is 161208689. The next prime is 161208713. The reversal of 161208703 is 307802161.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161208703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161208713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80604351 + 80604352.

It is an arithmetic number, because the mean of its divisors is an integer number (80604352).

Almost surely, 2^161208703 is an apocalyptic number.

161208703 is a deficient number, since it is larger than the sum of its proper divisors (1).

161208703 is an equidigital number, since it uses as much as digits as its factorization.

161208703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 161208703 is about 12696.7989272887. The cubic root of 161208703 is about 544.2471472430.

The spelling of 161208703 in words is "one hundred sixty-one million, two hundred eight thousand, seven hundred three".