160621061 has 2 divisors, whose sum is σ = 160621062. Its totient is φ = 160621060.

The previous prime is 160621057. The next prime is 160621073. The reversal of 160621061 is 160126061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120868036 + 39753025 = 10994^2 + 6305^2 .

It is a cyclic number.

It is not a de Polignac number, because 160621061 - 2² = 160621057 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160621031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80310530 + 80310531.

It is an arithmetic number, because the mean of its divisors is an integer number (80310531).

Almost surely, 2^160621061 is an apocalyptic number.

It is an amenable number.

160621061 is a deficient number, since it is larger than the sum of its proper divisors (1).

160621061 is an equidigital number, since it uses as much as digits as its factorization.

160621061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 160621061 is about 12673.6364552562. The cubic root of 160621061 is about 543.5850409725.

The spelling of 160621061 in words is "one hundred sixty million, six hundred twenty-one thousand, sixty-one".