161003069 has 2 divisors, whose sum is σ = 161003070. Its totient is φ = 161003068.

The previous prime is 161003009. The next prime is 161003071. The reversal of 161003069 is 960300161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143880025 + 17123044 = 11995^2 + 4138^2 .

It is a cyclic number.

It is not a de Polignac number, because 161003069 - 2¹⁶ = 160937533 is a prime.

It is a super-2 number, since 2×161003069² = 51843976454837522, which contains 22 as substring.

Together with 161003071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161003009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80501534 + 80501535.

It is an arithmetic number, because the mean of its divisors is an integer number (80501535).

Almost surely, 2^161003069 is an apocalyptic number.

It is an amenable number.

161003069 is a deficient number, since it is larger than the sum of its proper divisors (1).

161003069 is an equidigital number, since it uses as much as digits as its factorization.

161003069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 161003069 is about 12688.6984754150. The cubic root of 161003069 is about 544.0156391932.

The spelling of 161003069 in words is "one hundred sixty-one million, three thousand, sixty-nine".