161600839 has 2 divisors, whose sum is σ = 161600840. Its totient is φ = 161600838.

The previous prime is 161600821. The next prime is 161600897. The reversal of 161600839 is 938006161.

161600839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161600839 - 2⁵ = 161600807 is a prime.

It is a super-2 number, since 2×161600839² = 52229662331007842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161630839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80800419 + 80800420.

It is an arithmetic number, because the mean of its divisors is an integer number (80800420).

Almost surely, 2^161600839 is an apocalyptic number.

161600839 is a deficient number, since it is larger than the sum of its proper divisors (1).

161600839 is an equidigital number, since it uses as much as digits as its factorization.

161600839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 161600839 is about 12712.2318654121. The cubic root of 161600839 is about 544.6880789535.

The spelling of 161600839 in words is "one hundred sixty-one million, six hundred thousand, eight hundred thirty-nine".