161560327 has 2 divisors, whose sum is σ = 161560328. Its totient is φ = 161560326.

The previous prime is 161560297. The next prime is 161560337. The reversal of 161560327 is 723065161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161560327 - 2⁷ = 161560199 is a prime.

It is a super-2 number, since 2×161560327² = 52203478520693858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161560337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80780163 + 80780164.

It is an arithmetic number, because the mean of its divisors is an integer number (80780164).

Almost surely, 2^161560327 is an apocalyptic number.

161560327 is a deficient number, since it is larger than the sum of its proper divisors (1).

161560327 is an equidigital number, since it uses as much as digits as its factorization.

161560327 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 161560327 is about 12710.6383395957. The cubic root of 161560327 is about 544.6425588769.

The spelling of 161560327 in words is "one hundred sixty-one million, five hundred sixty thousand, three hundred twenty-seven".