161946307 has 2 divisors, whose sum is σ = 161946308. Its totient is φ = 161946306.

The previous prime is 161946271. The next prime is 161946313. The reversal of 161946307 is 703649161.

161946307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161946307 - 2¹¹ = 161944259 is a prime.

It is not a weakly prime, because it can be changed into another prime (161946347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80973153 + 80973154.

It is an arithmetic number, because the mean of its divisors is an integer number (80973154).

Almost surely, 2^161946307 is an apocalyptic number.

161946307 is a deficient number, since it is larger than the sum of its proper divisors (1).

161946307 is an equidigital number, since it uses as much as digits as its factorization.

161946307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 161946307 is about 12725.8126263119. The cubic root of 161946307 is about 545.0759448638.

The spelling of 161946307 in words is "one hundred sixty-one million, nine hundred forty-six thousand, three hundred seven".