161306147 has 2 divisors, whose sum is σ = 161306148. Its totient is φ = 161306146.

The previous prime is 161306141. The next prime is 161306221. The reversal of 161306147 is 741603161.

161306147 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 161306147 - 2¹² = 161302051 is a prime.

It is not a weakly prime, because it can be changed into another prime (161306141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80653073 + 80653074.

It is an arithmetic number, because the mean of its divisors is an integer number (80653074).

Almost surely, 2^161306147 is an apocalyptic number.

161306147 is a deficient number, since it is larger than the sum of its proper divisors (1).

161306147 is an equidigital number, since it uses as much as digits as its factorization.

161306147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 161306147 is about 12700.6356927518. The cubic root of 161306147 is about 544.3567834600.

The spelling of 161306147 in words is "one hundred sixty-one million, three hundred six thousand, one hundred forty-seven".